A timeline of events in the hours before and moments after two New York Police Department officers were killed in their cruiser Saturday by Ismaaiyl Brinsley, a 28-year-old man who vowed online to shoot two "pigs" in retaliation for the police chokehold death of Eric Garner. The two police departments discuss the Instagram posts during the call, and a wanted poster of Brinsley is faxed to the NYPD with information about Brinsley. 2:47 p.m.