An accident that killed two teens and injured two more in Princeton has shaken Collin County. Seven teens were loaded into a small hatchback early Sunday morning when the crash occurred, according to MyFOX DFW. Speed was reportedly the cause of the accident that killed Stephen Chaney and Cody Hensley, both 17. Police are currently investigating to determine if alcohol was a second factor. A memorial was held this week to mourn the teens killed and pray for the others injured, one of whom is reportedly in critical condition.