YouTuber Randy Stair threatened an online friend in a disturbing 2016 video before killing three co-workers at a Pennsylvania ...

Randy Stair was a Pennsylvania grocery store employee who became widely known after carrying out a deadly attack at the workplace where he was employed in 2017. Investigators later uncovered ...

The new episode will air at 9 p.m. ET on Investigation Discovery. Those without cable can watch the show for free through Philo or DIRECTV, each of which offers a free trial to new users. Sling is ...

Monday is a somber day for a community in Wyoming County: It’s been nine years since a shooting left four people dead at Weis ...