Dead

The suspect in last weekend’s mass shooting at Brown University has been found dead, authorities said Thursday, as investigators confirmed he was also responsible for the fatal shooting of a Massachusetts Institute of Technology professor two days later.

Officials identified the gunman as Claudio Neves Valente, a 48 year old Portuguese national and former Brown University student. Law enforcement said Valente died by suicide and acted alone. His motive remains unknown.

The announcement brings a major development in an investigation that began after a deadly attack inside a Brown lecture hall during final exams that left two students dead and …