"The loss of Officer Collier is deeply painful to the entire MIT community, " MIT President L. Rafael Reif said on the university website.

CNN: Slain MIT cop: 'He was born to be a police officer'

On Monday, MIT president L Rafael Reif praised the "brilliant creativity and idealism" of Mr Swartz, 26, who had been an early developer of the Reddit community.

BBC: Aaron Swartz investigation ordered by MIT

Following the death, MIT president L Rafael Reif praised the "brilliant creativity and idealism" of Mr Swartz, who had been an early developer of Reddit, a community news website.

BBC: MIT consults staff and students over Aaron Swartz probe