.>> my initial reaction is it is a scare tactic>> reporter: jennifer rowman, a former district attorney, tells us cosby suit has one goal, fear. >> when he countersues, he is saying, i have information about you that you may not want made public. i will focus on that to make you nervous and back off your claims. >> reporter: roman says what bu did could actually end up helping cosby in his countersuit. he could point of this and say these women dirt -- did hurt my reputation. this could take months to see the inside of a courtroom. kate merrill, wbz news. >>> jurors returned to the to decide if the teenager who killed his math teacher was murder. got the case today after powerful closing arguments. let's get to jim smith live in the satellite center.>> reporter: the insanity defense is the heart of the case. both sides agree chisholm killed his teacher but they disagree on how legally responsible he is for the crime. >> he began hearing voices at age 10.>> philip chism is not mentally ill. >> reporter: calculating killer or insane teenager? the defense says it was mental illness that dr

wbz legal analyst jennifer rowman says the comedian's words are the most damaging in this deposition. >> i went into this area work may not been entirely consensual. but no one said no so i kept going. that alone is going to be what >> if he is convicted he could go to prison. roman says this case will have big implications for many of the civil lawsuits. also for the defamation case that cosby has filed against his accusers in massachusetts. >>> were getting our first look at the massachusetts compound where bill cosby has been spending most of his time following the first sexual assault allegations. people in the neighborhood are divided on today's charges.>> awful, i feel sorry for the women. >> i think it's a lot of gossip. it doesn't need any publicity. >> he is a long time resident of shelburne falls, a historic quiet village located in the berkshires. you can stay with wbz for continuing coverage. we will keep you updated both on the air and online. >>> recognize overseas, brussels has canceled its new year's eve fireworks show they arrested two people yesterday who they say we