Officer Eric Casebolt was identified Sunday afternoon as the McKinney Police Department employee who was suspended after appearing in a viral video showing him roughly arresting teenagers at a Texas pool party, KDFW-TV reporter Zahid Arab reported. Sources confirm:McKinney Patrol Supervisor Cpl. Eric Casebolt placed on admin leave following conduct at pool party pic.twitter.com/JaJMFWR5Ef — Zahid…