>> i took five steps and fired five shots. >> i literally held john lennon's heart in my hand. >> it was an unthinkable crime that left millions in mourning. the murder of john lennon, next. it's a chilly night at around 10:45 p.m. police respond to a report of a it's a chilly night at around 10:45 p.m. police respond to a report of a shooting at the dakota, an exclusive apartment building on manhattan's upper west side. >> when we drove up to the dakota, there was a man standing in the middle of the street pointing into the archway saying that is the man doing the