troopers say they are investigating hundreds of tips. >> anchor: the details now on this murder mystery. >> we don't know if this was a random act. >> reporter: 27 year old vanessa marcot who sources say her body was set on fire. the district attorney late today told us they received hundreds of tips still no arrest. have you had a chance to interview sex offenders in the area? >> we're considering anyone committed this crime. >> we're shook up about this it's horrible. >> reporter: locking their doors and not doing anything alone. >> always loves riding. i won't ride alone anymore ever. or run. >> reporter: mark who graduated from bu in 2011 and working in google in new york was visiting her mother sunday. 7 hours later her body was discovered in the woods. mom's house. shaken residents are gathering at the first congregational church for the individual. >> our thoughts go out to this family for the precious life that was lost. as a town we need to hold together and say we're not going to go down. >> reporter: investigators say everything was on the table. in princeton steve cooper 7 news. >> anchor: also on 7 disturbing details landing a teacher's aide prosecutors revealing the allegations behind these troubling charges. 7's tim caputo outside the maldon high school with more details for us today. >> reporter: adam, these are alarming accusations. he told his mother and police that the sexual assaults happened over the course of several months. >> how do you plead guilty or not guilty. >> reporter: maintains his innocence in court. steven mcdonald's is accused of repeated abusing a student at the school. frequently took a 16 year old disabled student to assist him. prosecutors say that's where the alleged sexual assaults happened. the incidents started at the beginning of last school year and continued to march. >> the defendant continuously home and kill his mother. the defendant would offer the victim candy on occasions to lure him to the bathroom. >> reporter: the 16 year old boy tried to not use the bathroom during school to avoid mcdonald. >> he was left in the hall way in wet clothes. the victim told staff at the school that the defendant was mean. >> reporter: mcdodged was immediately put on leave and indicted last week on a number rape. his attorney says the accusations are untrue. >> he maintains his innocence. the story told by the alleged victim is an incredible unbelievable story. >> reporter: mcdonald was released without bail. his attorney argued that he should not have to wear a gps ankle monitoring bracelet. make sure he doesn't work with anyone under the age of 18. news. >> anchor: 7 news focusing on your forecast. this streak is about to end. we're getting much needed rain. how much are we talking and when? >> reporter: right now temps are in the 80s. the dew point temperatures 40 and 50s. that is about to change. clouds will be on the increase. more humidity overnight tonight. lows 62 to 68. more humid air. tropical air warm front. lift up into new england during the day tomorrow generating clouds and scattering of showers and downpours and perhaps thunderstorms. temps 79 to 84. time line tomorrow morning there may be a peek or 2 of sun. there will be scattered showers and storms. some of you downpours on and off in the day. others some sple inch of rain. others only a 10th of an inch of rain. we'll talk more about that as well as building heat by the end of the week in a few minutes. >> now on 7. >> stretching -- gets it. >> team usa on a quest for gold. >> reporter: represent u.s.a. and get the gold for our country. it on. >> it's the olympic zone. >> anchor: right now looking at live images from rio de janeiro olympic caldron. the olympic action is lighting up the city from the aquatic center to the volleyball court day 4 of the olympics has been an exciting one. >> anchor: united states will have more chances to capture gold. talk about that. let's get caught up on today's joe amorosino in the olympic zone with highlights. >> it was a busy day for patriots safety nate ebener. a massachusetts connection in game 2. ebener taking a pass from madison hughes whose mom is from the bay state. ebener making coach bill belichick proud with that stiff arm and score. her way into a first place finish. she advances to the semifinals on thursday. the 6th time head of the charles regatta winner one step closer to the olympic medal. alley raiseman is one to watch tonight. the native leads the gymnastics team for back to back gold in the team finals. michael phelps getting a chance collection tonight as well. this is the first shot of the individual medal in the rio games. katie ledecky hits the water for the 200 meter free style finals. catch the action on nbc starting at 8:00. >> anchor: stay with 7 news after this newscast joe with his olympic special. get you ready for prime time in olympic games. nancy chen live in rio for the olympics. checking with nancy tonight on 7 news after the games and throughout the olympics. >> anchor: moving on and big news out of patriots training camp. julian edleman limps off the field during today's practice. he was just cleared by team doctors to participate in training camp. edleman isn't the only one trey daerr with more details from gillette. >> injuries tough. the game of football is not always easy on your body. there are a lot of things out of your control. >> reporter: those words never more evident as julian edleman exited the field appearing to reaggravated his left foot in practice. >> he's probably one of the most competitive guys. he's part of the heart and soul of the team. >> reporter: an unrivaled competitor with unquestioned toughness. pushing his limits too soon. creating another level of uncertainty for the patriots in training camp. >> it's my teammate. you want him to be as healthy as possible. at the end of the day we can't stop playing football. >> edleman in the league. no one like him on the football team. i don't know what is going on. obviously we're hoping for the best. >> reporter: julian edleman not the only damaging injury for the patriots. late this afternoon mike reese reporting that linebacker rob ninkovich did tear his try accept. >> anchor: the pats take on the cardinals sunday september 11th at 8:30 right here on 7. >> anchor: turning now to the race for the white house donald trump at a rally in north carolina today sending a message to gun advocates that the rival clinton campaign is condemning as dangerous and insighting violence against her. >> hillary wants to abolish essential abolish the second amendment. by the way if she gets to pick -- >> if she gets to pick her judges nothing you can do folks. although the second amendment people maybe there is i don't know. >> anchor: top trump adviser trump was talked about second amendment supporters exercising their voting power not attacking clinton. senator elizabeth warren responding by tweeting donald ; accused of vandalizing a political sign. susan is accused of spray painting a donald trump sign in front of a home. she drove off nearly running her over. surveillance here shows bryant spray painting the word scum on the sign. she's charged with 4 vandalism counts and assault with a deadly weapon. >> anchor: a deadly drive on the mass pike in westborough. a man traveled the wrong direction. just a highway horror. it killed that driver left several innocent people injured. identified the wrong way driver as a 28 year old rut man. investigators believe he got on the pike not far from where the crash happened. one couple says the driver just missed them seconds before the crash happened. a construction site ahead of me. there was a car barreling at us. >> jim threw the phone at me. you got to call 911. and he's going fast. >> police say they will do toxicology testing on the driver. that's standard and maybe that will give them answers about what caused the crash. i 7 on the scene of a deadly crash in shrewsbury. a pedestrian was hit by a tractor trailer. this was 290 westbound. happened about 9:00 this morning. the driver of the truck 50 years old from worcester. he stayed there after the crash happened. >> anchor: they've arrested the man behind an alarming assault. 65 year old donald galvin was in court facing charges that he broke into a 79 year old woman's home and sexually assaulted her. off the streets. the world is crazy enough as it is. >> i'm surprised they caught him so fast. that's good news. ; according to police galvin is a level 3 sex offender with a prior rape conviction from 1993. police are searching for the man who looks like the guy in the sketch. asking them to get in the car to play pokemon girl -- go. the >> anchor: possible head night back fires for the red sox. why the teams promotion to pay tribute to big poppy did not go as planned. >> reporter: by the end of the week it will be about the heat and humidity. forecast up next. >> anchor: give a determined little girl providing police with a special surprise. all that and more when we continue right here on the news i feel too young to be this old. i just want to be her mom, not her full-time job. i'm the boss of me, but sometimes i need a little help. if you or a loved one has masshealth, call commonwealth care alliance to find out about senior care options. [ hip hop beat throughout ] ? olympics 2016, let me get you on my level. ? ? so you never miss a moment, ? ? miss a minute, miss a medal. ? ? why settle when you can have it all? ? ? soccer to wrestling. track and field to basketball. ? ? fencing to cycling. diving to balance beam. ? ? all you have to say is, ? ? ?show me,? and boom it's on the screen. ? ? from the bottom of the mat, ? ? to the couch where you at? ? ? "show me the latest medal count?" ? ? dang they even got that! ? welcome to it all. watch the rio olympics on nbc networks starting august 5th. >> anchor: bad possible heads at fenway park. the red sox were planning to honor david ortiz tonight with the yankees in town. these big poppy possible heads weren't to order and considered offensive. >> anchor: nick emmons outside fenway park to tell us about the reacting. >> reporter: fans not happy, adam. this happened earlier today the team tweeted out that fans showing up to tonight's game against the yankees would not be receiving the ortiz possible heads. the ones they got from the company did not match the ones they promowed earlier. excitement at fenway met with controversy on david ortiz possible head night. >> one of the things that sold us on the head. >> reporter: the team deciding to scrap the give away saying the possible heads were not for distribution. he felt the possible heads were an offensive portrayal of ortiz and sensitive. >> we got here 10:00 this morning. >> i really wanted a possible head. >> reporter: the give away meant to to the line given by ortiz >> this is our [beep] city. >> reporter: many fans coming from far away to arrive early. >> been driving for 4 hours to get here for the possible head. >> i came from miami for the possible head. shame they won't be giving it out today. >> reporter: so the team telling all the fans that were arriving hoping to get a possible head they were handed a voucher so they don't consider offensive at a later date. >> anchor: hopefully they'll be shipping those so people don't drive up from miami. >> anchor: i was going to say the same thing. speaking of miami. jeremy, for the next few days. >> anchor: good transition. so true. a lot of humidity. >> reporter: it is. a lot of clouds sun and downpours. again scattering of showers and storms tomorrow. it's not a wash out. thursday drops down to a 10% chance. then it starts to build again toward the end of the week and weekend with increasing humidity and heat. the temps are in the 80s. upper 70s and low 80s at the coastline. 90 this afternoon in the merrimac valley and the worcester hills. when you get yourself a sea breeze. it's an august sea breeze. with that water temp in the 70s that ramps up the dew point temperatures to the 60s to 70. dew points in the eastern half of the united states running in the 70s. nashville at 75. i point that out because that's heading for new england for the remainder of the week. as are the clouds and s and the pattern for a few days where we have the chance of showers and storms. beneficial rain. not concerned about severe weather. more humid late tonight. tomorrow a lot of clouds a few peaks of sunshine. temps 79 to 84. early in the day you might be able to get your morning routine in a jog or run without getting showers and downpours. through the morning here comes the threat of you notice warm colors on the screen here. these are the downpours and rumbles of thunder as well. it begins to wind down late tomorrow afternoon and tomorrow evening. how much rain is on are the way? if you get under one of these downpours moisture in there. an inch to 2 inches of rain. boston a half an inch. don't take this to the bank. this isn't gospel. wnpours on and off tomorrow. thursday back in the sunshine. humidity is with us. hot with temperatures on thursday mid 90s. you factor in the humidity it will feel like 100. friday much the same lower 90s a lot of humidity. and then the chance of showers and storms will go up once again through the weekend. i think saturday might be the better beach day and outdoor activity enjoy the games tonight. >> anchor: you too jeremy. ahead on 7 news at 7. care packages for local police. (jet engine reving up) you hear that? that's the sound of our summer sale firing up its engines with fares as low as 69 dollars one-way. so get ready to take off ... don't happen every day! book your low fare now at southwest.com. low fares. nothing to hide. that's transfarency. at longhorn, steak is all you need. its not all you get. longhorn's great american steak dinner for $12.99. perfectly seasoned sirloin with your choice of side. plus an appetizer or a dessert. all with fresh salad and unlimited bread. the great american steak dinner, for $12.99. tonight, only at longhorn steakhouse. you can't fake steak. for lunch try our steakhouse burger brought to you locally in part by bernie and phil's. >> anchor: a local woman teams up with her 5 years old niece and church to bring some smiles. ; together they these care packages to the officers at the plymouth police department. family says in light of recent attacks on police they want to show their officers they care. >> life savers because you are a life saver. gum to remind you to stick together. that's awesome. jolly ranchers in case you need something sweet. and cards because we appreciate you. >> anchor: that was plymouth's community support means a lot to everyone in that department. creamy swirls of pure indulgence. silky sifts of total transcendence. tempting accents of sheer pleasure. introducing "unicorn whispers." this should be the name. or something more like "golden gold." or maybe, "mmmmmm mmhmm." >> anchor: talking about it before we came back here. and a big night for the olympics. >> anchor: this is one to watch. michael phelps. katie ledecky. and the u.s. gymnastics team is going to shine. enjoy that everybody. for now i'm kim khazei. williams. stay right there for the olympic ? everything is awesome ? ? everything is cool when you're watching a screen ? ? everything is awesome, ? ? when you're sharing a meme ? ? a voice remote, ?show me angry kings? ? ? you know what's awesome? everything! ? ? apps that please, more selfies, ? ? endless hours of the best tvs ? ? brand new apps, shows to go, ? ? awesome internet that's super whoa... ? ? everything is awesome ? when people ask me what it's like to win an olympic medal, i tell them, "you already know." the medals you've earned are all around you. your bronze. your silver. your gold. and liberty mutual insures them all. liberty mutual is proud to insure every team usa medal won in rio, >> 7 news takes you into the olympic zone. brought to you by dunkin donuts. >> reporter: kayla harrison became the first american to win a gold medal in judo in the 2012 olympics. ready to defen rio. the wait is over for nate ebener and the u.s. rugby team. show you how they faired in their rio debut. take in sights of the host city with super model adriana lima as our tour guide. i'm joe amorosino. a productive day in rein rio for local athletes. and travis stevens earning a