trains and if we were able to, we can t route the trains. so without these two systems working properly, we are unable to put trains on the system. reporter: b. a. r. t. discovered the problem at 2:45 a.m. and initially believed it may have been triggered by scheduled maintenance that was being conducted on the system overnight. but a spokesman now says they don t know what caused the crash. b. a. r. t. passengers say they re frustrated by a secondary failure, one of communication. i came here and i thought, no, this cannot be happening. i m knocking at the door like please let me in. reporter: but the doors to b. a. r. t. stations across the bay area didn t open until 9:09 a.m. and even theno sfremained shut down until right before 11. it is all hands on deck. this is a major issue. everybody at b. a. r. t. is working on getting us up and running. reporter: many of the passengers we spoke to this morning said they had a place they needed to get to on a tight deadli
newscopter 7 is over the newark penn station area where firefighters doused the flames. all lines are back up and running but many are delayed we are told up to 45 minutes. firefighters put out the small fire quickly. it s not clear what on the tracks was burning. it s long been a long leveled criticism. new york city has largely ignored those with mental health problems. tonight a groundbreaking campaign by city hall that will affect tens of thousands of people including homeless people. mayor de blasio now pouring millions of dollars in to try to tackle the problem. here is stacey sager. reporter: 10:30 this morning on east 125th and lex where an emotionally disturbed homeless man is restrained by police. they wait for medical help. ask anyone in east harlem, he is one of many that the homeless situation has exploded here in recent weeks largely because of k 2, a synthetic marijuana causing some to lash out. this woman, a recovering addict herself explaining the problem
this race sometimes ugly even this early on. political reporter dave evans here with a recap. reporter: donald trump was front and center because he is the leading republican candidate. tonight did he not back down from some of is his more controversial statements. the other candidates did take some jabs but mostly they tried to shift the focus to anything but trump. donald trump tonight surprisingly refused to back the republican nominee if it is not him, and that infuriated rand paul. this is what s wrong. he buys and sells politicians of all stripes. reporter: then trump was accused of being part of what hillary clinton has called the war on women. you ve called women you don t like fat pigs, dogs, slobs, and disgusting animals. your twitter account reporter: but trump may have earned some points with a withering attack on the media. i think the big problem this country has is being politically correct. i ve been reporter: governor christie was question
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by the demon of drug use that started 15 years ago. he is what he is now because of his addictions. reporter: he is particularly worried about his son using synthetic marijuana, which can permanently damage body and brain. these drugs can make these people very violent, very unpredictable. the way i saw them today reporter: he said he tried many times to get his son help and even tried to get tough. i went to the police station. 34 years old. there s nothing we can do. we cannot hold him. more than 72 hours. reporter: he says he feels for all the families of these troubled souls who are in the grips of a dangerous drug. tony aiello cbs 2 news. more information now on k2 from the city s health department. despite it being illegal to sell k2 in new york state, officials say synthetic marijuana is often sold as incense, herbal mixtures, plant food or potpourri. in new york city, men make up to 90% of k2 users who end up in the emergency rooms. and most of those p