Nightly News | April 24, 2013
>>> in cambridge today, a sea of law enforcement , what seemed like the entire m.i.t. community and a whole lot of bostonians. they all came together to attend a moving memorial ceremony for the m.i.t. police officer killed thursday night as the alleged marathon bombers went on their last rampage. our report tonight from nbc's katy tur.
>> reporter: a sea of 15,000 blue caps. family, friends, officers and strangers came to celebrate the life of fallen m.i.t. officer sean collier.
>> he loved this. sirens, flashi ining lights, formations, people saluting. he was born to be a police officer . he lived out his dreams.
>> reporter: collier was only 27 when he crossed paths with the accused marathon bombers.
>> we have suffered. we are grieving.
>> reporter: today vice president biden couldn't seem to contain his anger.
>> whether it's al qaeda central out of the fattah or two twisted, perverted, cowardly knock-off jihadis here in boston, why do they do what they do? if the purpose of terrorism is to instill fear, you saw none of it here in boston.
>> reporter: though answers today -- shower the people you love with love
>> reporter: -- but some comfort from james taylor . show them the way that you feel things are going to be much better
>> reporter: and the m.i.t. symphony choir. in only 15 short months on m.i.t. 's campus, sean collier found a place in its heart.
>> we know we'll see him again and he'll have that big grin and a hug for all of us. officer sean collier, we love you.