Marathon a half century after she blazed a 26 mile trail for women. This is the this is the cbs evening news with scott pelley. Father of nine and grandfather of 14. Joy lane. Reporter joy lane is is stephens exgirlfriend. She is the reason why this is about to happen to you. How old are you . Man, look, i dont know i dont know nobody by that name. Reporter godwin is shot in the face allegedly by stephens, left for dead on the sidewalk, apparently selected at random by a gunman with a grudge and big gambling debts. Soon after, stephens is is on the phone again. Today is the Easter Sunday joy lane massacre. Reporter clevelands police chief is calvin williams. Obviously hes got deep, deep issues. And whether he was calm or not, he committed a heinous crime in the city and we want to get him off the streets as soon as possible. I killed 13, im working on 14 as we speak. Reporter while police have turned up no evidence of other victims, stephens is still considered a very serious threat. You are still assuming armed . Yes, i think we can say without a doubt hes armed. Reporter and apparently motivated. I got a lot of built in anger and frustration, man. I snapped. Dog, i just snapped, dog, i just snapped. Reporter while the police here say the suspect is still probably somewhere in ohio, scott, the resources and agencies involved in this investigation made clear he could be anywhere in the country. Pelley dean ron reynolds, thanks. John blackstone has been looking into the role of social media in this. Reporter the video of the murder was available on facebook for more than two hours before it was removed. It was viewed by at least 22,000 people and shared 1200 times. Karen north is professor of social media at the annenberg school. Theres a big question of why didnt anybody flag this and take it down for so long. Reporter thats a question facebook was not willing to answer today. Why cant facebook quickly video of a murder when its posted on facebook . Unfortunately, i cant comment on that. Reporter in san sai where the social network is preparing for its annual developers conference, facebook executive emphasized those things of which the company is proud. We want to be able to show the new technology on things like messenger, ocu lu s, virtual reality, augmented reality. Reporter but live killings on facebook live. Unfortunately i condition comnt on that. Reporter in a blog post late today a facebook Vice President wrote it was a horrific crime, one that has no place on face book and are reviewing our reporting flows to be sure people can report videos and other material that violates our standards. The company uses Technology IncludingArtificial Intelligence to identify Copyright Infringement on the site. An incident involving objectionable material like assaults and suicide, facebook is having a much more difficult time tracking those and largely depends on users to flag them. Harder to identify by algorithms than words are. They are going to be doing some not soul search ising, theyre going to be doing some algorithm searching and figure out why in the world this. Reporter tomorrow facebook c. E. O. Mark zuckerberg will address the companys annual developers conference. Its a speech that is is usually filled with superlatives about facebook he tbroat but this area, scott, zuckerberg will be expected to address how the social network can do better. Pelley well have that tomorrow, John Blackstone for us tonight, john, thank you. Now to another important story tonight, north korea is by far the poorest nation on earth with a nuclear weapon. On the list of the des teut, it is tied with haiti. North korea leader a 33 year old homicidal dictator without would like to hold america hostage to a nucleartipped missile that he is evil doing. President obamas parting advice to incoming President Trump was ominous threat. Adriana diaz followed todays developments. Reporter during a surprise visit to north koreas border, Vice President mike pence delivered a stern warning. President trump has made it clear that the patience of the United States and our allies in this region has run out. Reporter hes here in part to calm americas jittery allies. All options are be o the table to achieve the objectives and insure the security of the people of this country and the stability of this region. Reporter north koreas projecting similar bluster, at a weekend celebration of their founding father, they paraded tanks, guns and what appeared to be untested interkonl ballistic missiles. But that fan fare soon fizz eled when they tied a liquid fueled Medium Range Missile launched from a rocket stand on sunday. Seconds later, the missile exploded. It is is the latest in a string of recent increased after president obama authorized cyberattacks against kim junguns program, says beijing carnegie center. What signs do you see this could have been a result of cyberwarfare. Some of the missiles involved ones that were previously successfully tested. But later on they failed continuously. So that means some new problem emerged. And that could be due to outside interference. Reporter as tensions rise, recent satellite images show that north korea may be preparing another nuclear test. Today north Korean Ambassador to the u. N. Said his country also known as the dprk will not be intimidated. The dprk is ready to react to any more of a war desired by the americans. Reporter caught between the two is beijing. Chinas north trading partner and ally but they are cooperating with the u. S. To rein them in. Complicating things further is the Vice President s pledge to quickly deploy a u. S. Antimissile system in south korea that china veemently opposes. Pelley adriana diaz in beijing for us, thank you. North korea has forced President Trump off of his campaign promises. There were times when candidate trump seemed to be running more against china than against hillary clinton. Last may he said we cant continue to allow china to rape our country. In his contract with the American Voter he promised that on day one he would direct the secretary of the treasury to label china a currency manipulator. Now that he needs chinas help with north korea, mr. Trump tweeted why would i call chinas currency manipulator when theyre working with us on the north korean problem. The president also tweeted his irritation w calling on him to release his tax returns. He wrote i did what was an almost impossible thing to do for a republican. Easily won the Electoral College, now tax returns are brought up again . For the record, mr. Trumps split decision victory is among the closest in history, in the three states that clench the Electoral College for him. Mr. Trump won by 77,000 votes. Out of 128 million cast. Chip reid has the taxing debate over the president s returns. Hoho ho, donald trump has got to go. Reporter this weekend protestors from coast to coast called on President Trump to release his tax returns. He says he cant release them because hes under audit but tax experts say that shouldnt matter. This was president elect trump in january. You know, the only one that irkas about my tax returns the reporters, okay, they arehe reporter but in february a cbs news poll found 56 think its necessary for him to release his tax returns. 43 said it is is not. Hes the only president not to release them in more than 40 years. Before taking office, mr. Trump often criticized president obama for being too secretive. In 2012 he tweeted he is the least transparent president ever. And he ran on transparency. But on friday, the white house said its visiter logs will no longer be made public, a practice begun by president obama. Donald Trumps White House is less transparns transparent that Barack Obamas white house. Reporter law professor Kathleen Clark is san expert on government ethics. We do not know how much money the president owes and to whom he owes it. Reporter White House Press secretary sean spicer. There are now ethics experts on both sides of the aisle who say this is is the least Transparent Administration in decades. How do you respond . Well, i think that we have taken several stepsal house in terms of, in particular, the press. We bring people in, we release participate lists, we give the press the opportunity to come in the room. So i would respectfully disagree with that. Reporter this white house is even secretive about golf. President trump has already visited golf courses 19 times but scott, in most of those cases, the white house has refused to confirm or deny if the president was actually golfing. Pirro chip reid, thanks. Well, mr. Trump did take a swing at the democrat running in a special election tomorrow in georgia to fill a house seat. It should be a geme because republicans have held that seat since the 1980s. But democrats are trying to make this a referendum on President Trump. And heres nancy cordes. This is not your typical sleeping special election. Reporter 30 year old john ossoff hast gone from unknown deumary to democratic cause celeb in the space of two nt knowing that democrats across this country are invested their hopes in you . I feel so well supported by thousands of people here in this community. Reporter the former congressional aide is running against 11 republicans and four other democrats to fill the seat vacated by tom price President Trumps secretary of health and human services. Progressive websites push democrats nationwide to give to ossoff and they did. Hes raised 8. 3 million, 18 times more than his Top Republican rival. Karen handle. Is he is being bank rolled by nancy pelesoy pelosi and the liberal level rft President Trump without won this diskriek by one point said ossoff is a superliberal democrat who wants to protect criminals. The race has become an outlet for democrats frustrated by mr. Trumps november win. I hate the lying. At sharon adams drove here from chattanooga, tennessee, to canvas alongside local supporters. What does your family say when you told them im going to go to georgia and volunteer in a congressional race there. My husband said good. My kids thought it was great. Reporter tomorrows election is what is known as a jungle primary where all the democrats and republicans faceoff against each other. If no one gets above 50 , it goes to a runoff and if that is the case, scott, ossoff will likely go up against a gop thats unified around one candidate instead of 11. Pelley nancy cordes for us tonight, thank you. Tonight, turkey, a key nato ally, remains deeply divided after the president there won a referendum that greatly expands his powers. The vote was surprisingly close, just 51 voted yes. And while president erdogan to the streets and international monitors said the Playing Field wasnt level. One week after a deadly shooting, students were greeted with hugs as classes resumed at North Park Elementary School in san bernardino, california. Counselors were on hand and security was tightened. Last monday a man burst in and murdered his wife, a teacher, before shooting himself to death, but bullets also hit two students. Eight year old Jonathan Martinez was killed. Coming up next on the cbs evening news, prince harry reveals how he dealt with the pain of losing his mother. And later, she is still running. 50 years after fighting for her place in history. Pelley nearly two decades after the death of his mother prince harry has revealed the anguish that forced him to seek help. And heres reporter prince harry was just 12 years old when his mother Princess Diana died in a car crash in paris. He told britains telegraph newspaper he dealt with the agony by not dealing with it at all. It was 20 years of not thinking about it, and then two years of total chaos. Reporter now 32, he said he came close to complete breakdown at times on the verge of punching someone. Finally his brother Prince William convinced him to seek help. I can safely say that losing my mum at the age of 12, im therefore shutting down all of my emotions for the last 20 years, has had a quite serious effect on, on not only my personal life but also my work as well. Reporter the candid interview coinsides with the 20th anniversary of the death of principle seses diana. This new Memorial Garden marks that anniversary outside kensington palace. Its where diana lived, now home to her two sons. Like d, to revell his own vulnerabilities in order to help others says royal correspondent. I think by doing that, by finally saying yes, i have had issues with my mental health, i have finally sought help for it and its fine, its okay to not be normal all the time, i think harry has done wonders to destigma advertise which is still an issue in this country. Reporter and hes hoping others will follow his lead. The easiest person to speak to is is a shrink americans call, someone su never met before, and you say listen, you can just listen. Just listen me. And you just let it all out. And he lets it rip in the ring too. He is now taking up boxing, saying it helped save him. Charlie dag add dagata, cbs news, london. Pelley still ahead, celebrations of eggs and benedict, separate stories in a moment. Bp developed new, industryleading software to monitor Drilling Operations in realtime, so our engineers can solve problems with the most precise data at their fingertips. Because safety is never being satisfied. And always working to be better. Pelley Police Investigating the death of the rock star prince nearly one year ago found a sizeable amount of pain killers throughout his home near minute yab liss, that included oxycodone prescribed under a friends name to protect the pop stars privacy. Prince died of an overdoat of fent nil and the legal drug 50 times more powerful than heroin but detectives could not determine how he got it. The retired Pope Benedict xvith turned 90 on Easter Sunday is, so the Birthday Celebration at the vatican was put off until today. A delegation from his native bavaria including his brother toasted him with beer and serenadeed him with german music. His yolk was overeasy and his burden was lighthearted as President Trump presided over his first easter egg rolls achieve eggecu tive. Competition among thousands of kids and the First Lady Melania Trump read the children a story. Next, the story of a runner whose been blazing trails for 50 years. This portion of the krrk bs evening news is is sponsored by flo flrks as is e allergy relief, are you greater than your allergies. Over of the 30,000 who ran the Boston Marathon today perhaps no one was prouder than the woman wearing number 261, she earned that number half a century ago. Don caller introduces caller introduces to a true worm warrer. A simple concept place one foot in front of the other for 26 miles, years ago half the population were not welcomed to participate in marathons. Then on a cold april morning, 20 year old Katherine Switzer changed everything. In 67y did is you set out to shatter the glass starting line. I was just a girl who wanted to run am hi proved to my coach i could do it and i was just there to celebrate. Other women had run the Boston Marathon, none officially. Her coachs one condition, that she register as a contestant. Nobody believe a woman could or would want to run. So why even consider it. Reporter a few miles into the race an official named jock simp is el spotted her. I turned and i suddenly lacked into the face of the angriest guy i have ever seen, this guy was out of control, he was snarling at me. This now iconic series of photos came to represent a female athletes struggle compete. He grabbed me, and he screamed get the hell out of my race. I was just terrified. It was out of the blue. My burly boyfriend who was running along sid eall american Football Player took out the official just like that. And sent him flying. And my coach said run like hell. Reporter she crossed the finish line that day an never stopped running. Following her example women all around the world took up the sport. Today at 70 years old, switzer ran her 40th marathon. The reason now is not to prove that women can do t the higher reason now is is is also to show frankly that an older person can stay active and healthy. I want to celebrate in the best possible way. Reporter five decades after First Crossing that finish line, katherine s is witzer did it again. A simple concept, place one foot in front of the other and change the world. Don dahler, cbs news, boston. Pelley and thats our finish line for tonight. For all of us at cbs news, all around a the world, good night. Stronand restoringding a a fathers faith. Its standing tall after one surgery. Not six. Stronger is being a typical kid. Despite a rare disorder. Stronger is finding it earlier. And coming home sooner. Stronger is seeking answers. And not giving up, until you find them. Because we dont just want your kids to grow up. We want them to grow up stronger. North korea says it is ready to conduct weekly missile testing. Good evening. Were going to start with the latest on the ohio facebook murder. This is 74yearold robert godwin, senior. He is a retired foundry worker from cleveland ohio, father of nine, grandfather to 14. This is steve stephens, the man who killed him in cold blood as