Sean Collier

A mural by students from the Community Arts Center in Cambridge celebrates their city and pays tribute to slain MIT police officer Sean Collier, killed in the aftermath of the Boston Marathon bombings in April 2013.

Cambridge is coming to terms with its close connection to the Boston Marathon suspects

Cambridge, Massachusetts is home to Harvard and MIT, and just across the river from Boston. It was also home to the men alleged to be behind the marathon bombings. Residents are still trying to grapple with what happened and whether the bombings could have been prevented.

Cambridge is coming to terms with its close connection to the Boston Marathon suspects
A woman is comforted by a man near a triage tent set up for the Boston Marathon after the April 2013 bombings

Here's a quick guide to handling the emotions that may come up with the Boston Marathon anniversary

Here's a quick guide to handling the emotions that may come up with the Boston Marathon anniversary

Was alleged Boston bomber Tamerlan Tsarnaev mentally ill?

Was alleged Boston bomber Tamerlan Tsarnaev mentally ill?

How the Carjack Victim Survived 90-Harrowing Minutes with the Tsarnaev Brothers

How the Carjack Victim Survived 90-Harrowing Minutes with the Tsarnaev Brothers

The Scene from MIT -- and Listener Messages for Boston

The Scene from MIT -- and Listener Messages for Boston

A City in Lockdown

A City in Lockdown