Brown University shooting: authorities say they released sole person of interest

At least two people were killed and nine others injured in Saturday attack that occurred in engineering building on Providence, Rhode Island campusA person of interest detained after a mass shooting at Brown University that killed two students and injured nine has been released after the investigation took law enforcement authorities in a “different direction”, officials said Sunday night. The disclosure was made at a hastily convened late night news conference to address the killings that have rattled the Ivy League campus. It came more than 12 hours after officials had announced that they had taken a person into custody. The Rhode Island attorney general, Peter Neronha, said authorities had since concluded there is “no basis to consider him a person of interest.”The release leaves law enforcement without any publicly disclosed suspect, with officials pledging to redouble efforts in the investigation by canvassing for video surveillance that could help pinpoint the killer’s identit...