>> harry houck, retired former new york police department detective, and, of course, before even we get to that moment there is the difficulty of dealing with the tragic loss of two new york city police officers who were ambushed today. and this is sort of recapping now. it occurred this afternoon in brooklyn. reports are two officers were inside their police vehicle. they were there protecting the neighborhood when it appears a suspect ambush them. that was the description given. shot into their vehicle. both men were hit, both men were hit in the head, and subsequently they died either on their way to the hospital or at the hospital. we are standing by now for a news conference. several hours have passed since that time. the suspect is believed to have come from baltimore. there are suggestions he may have posted about his actions on the internet, which, of course, we're still working to track down. but authorities say the suspect took his own life in a subway