Boston bombing: The crucial turning point was the release of suspects' photos..
Cops say that suspects threw a pressure cooker bomb at them..
Tamerlan Tsarnaev lost friend to grisly murder..
Dzhokhar Tweeted while running..?
Life was normal.. he slept in dorm and worked out at the gym..?
During the statewide manhunt, Tsarnaev partied..?
Details released from the chase: Younger brother drove over his older brother while cops were cuffing him..
The timeline..
Tribute at Fenway..
