04/19/2013 04:50 pm ET Updated Dec 06, 2017

Sean Collier Remembered By MIT Community In Online Tributes

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Sean Collier, the 26-year-old Massachusetts Institute of Technology police officer shot to death Thursday night on the Cambridge, Mass., campus, was memorialized online Friday as an outdoors lover.

As news of Collier's death spread, the Boston area was locked down while police mounted a massive hunt for one of two brothers they linked to the killing and to the Boston Marathon bombing. Unable to gather in person, many people in the MIT community took to the Internet to memorialize Collier.

MIT's homepage went dark as they dedicated it to their fallen officer:

mit website sean collier

(Click here to read a profile of Sean Collier)

A webpage on MIT's domain was set up to collecting donations for Collier's family. The MIT news office said his family requested donations be made to the Jimmy Fund, a group that supports cancer research.

Members of the MIT community spent Friday posting anonymous comments with their memories of Collier on a Tumblr page. Many described Collier as an outdoors lover and shared photos of him hiking and mountain climbing. He was involved with the MIT Outing Club, which the group noted on its website Friday.

Here are some of the remembrances on the Sean Collier Memories Tumblr:

Students Remember Deceased MIT Officer: Sean Collier

People also shared their thoughts about Collier on Twitter:

WAKA Kickball, a Boston area kickball league, said on Facebook that Collier usually played with his team, Kickhopopotamus, on Sundays. "Our thoughts and prayers go out him, his family, friend[sic], teammates, and those who knew him."

Beyond the Internet, Wicked Local Somerville reported a group of Tufts University students who lived across the street from Collier draped an American flag from their balcony.