Ritzer Standing News Today : Breaking News, Live Updates & Top Stories | Vimarsana

Math class on tuesday and actually heard miss ritzer ask philip to stay after class. she was the last person to see the two together on tuesday. cambria says last period at colleen ritzer's math class seemed normal. she didn't think anything of it when ritzer asked 14-year-old chism to stay behind when the ball rang at 1:55 p.m. >> he was a little bit more quiet than usual. he had his ear buds on. he wasn't drawing. he wasn't doing math. he wasn't paying attention. she said if he could stay after to do what he had missed that day. >> reporter: nearly an hour and a half later, clottier remember...

>> what did you see in the classroom at 3:15? >> i saw miss ritzer standing at her desk computer smiling at me, then i saw philip slouching in his chair staring at me when i walked by. >> reporter: just 15 minutes later, according to sources close to the investigation, colleen ritzer was brutally killed in the school's second floor bathroom. >> if i walked by there 15 minutes later, what could have happened? if i witnessed that, like what could i have done. >> reporter: here's what sources close to the investigation are telling us. they are telling us that there is nothing in his past, in this...