IRS criminal investigators played a pivotal role in tracking down the Brown University shooter, ultimately leading the FBI and other law enforcement agencies right to him, sources told The Post. After ...

Claudio Manuel Neves Valente who allegedly killed two Brown University students and an MIT physicist in a multi-day shooting spree harbored a decades-old grudge over his own failed scientific career, ...

A total of five people, including a police officer and the alleged shooter, are dead, and another is in critical but stable condition, after a shooting that occurred in a Midtown Manhattan building ...

A Brown University custodian says he saw the alleged mass shooter, who opened fire in a classroom on Dec. 13, killing two people and injuring nine others, nearly a dozen times several weeks before the ...

A Delaware State Police trooper was killed in the active shooter incident at the Wilmington Division of Motor Vehicles near New Castle that prompted the abrupt closure of the center mid-afternoon on ...

More than a week after a gunman killed two students at Brown University and an MIT professor at his apartment in Brookline, authorities are still searching for a motive. Claudio Manuel Neves Valente ...

MINQUADALE, Del. (WPVI) -- Delaware State Police have identified the trooper who was killed in a shooting at a DMV facility in New Castle County on Tuesday afternoon. Corporal Grade One Matthew T. "Ty ...

Authorities said a Delaware State Trooper and a suspect were killed following a shooting at the Wilmington DMV in New Castle. Delaware State Police shared on social media that the incident unfolded ...

Footage newly obtained by ABC News appears to show the moment that the man suspected of opening fire at Brown University in December fled the Ivy League campus. Law enforcement sources tell ABC News ...

Governor Matt Meyer, First Lady Lauren Meyer, Lieutenant Governor Kyle Evans Gay, and Second Gentleman Olin Gay issued the following statement on the murder of a Delaware State trooper at the ...