MIT officer killed was brother of Hendrick Motorsports employee

Sean Collier, the officer at MIT who according to authorities was killed by the two suspects in the Boston Marathon bombings, was the brother of Andrew Collier, a machinist in the engine department at Hendrick Motorsports.

"The thoughts and prayers of everyone at Hendrick Motorsports are with Andrew Collier and his family," the team said in a statement. "Andrew, a machinist in the Hendrick Motorsports engine department, tragically lost his brother, Officer Sean Collier, last night in Cambridge, Mass. We ask that the family’s privacy be considered during this difficult time."

"A very sad time, my thoughts and prayers are with the family, and I certainly know it's the same throughout Hendrick Motorsports," Jimmie Johnson said. "We're one big family and it's sad and unfortunate to see a fellow teammate and his family have such a tough time."

Collier, 26, responded to a disturbance on the MIT campus on Thursday evening. He was found shot in his vehicle when other officers responded to the scene after gunfire was reported.