Talon Roller Coaster at Dorney Park in Pennsylvania is closed now because of a signal failure that happened two days ago. People on the coaster had to be evacuated through the emergency exit on the side of the coaster.
Don't know what's happening with the Talon Coaster but I heard someone got killed by a coaster at Cedar Point this past week. Apparently, he entered a restricted area looking for a cell phone and got stroke by a coaster.