PROVIDENCE, R.I. (AP) _ More than 30 members of the Rhode Island State Police have attended a memorial service for the slain Massachusetts Institute of Technology police Officer Sean Collier.
State Police Superintendent Col. Steven O'Donnell led the contingent of troopers who attended the service for the 26-year-old police officer. Authorities say Collier was shot to death on the school's Cambridge campus by the suspects in the Boston Marathon bombings.
O'Donnell said Collier was killed doing what law enforcement officers do every day: responding to calls for service.  He said his thoughts and prayers are with Collier's family and the whole MIT community.

He also asked Rhode Islanders to reflect on the service law enforcement officers provide.