The Muskingum County Sheriff’s office releases more information about the death of a Philo High School student last month. Sergeant Dan Marks says on January 31st 15-year-old Derek Dressler was found unresponsive by his parents and detectives. He was rushed to Genesis where he was pronounced dead. Investigators say that the preliminary tests revealed the cause of death to be a drug overdose. Marks said that traces of the drug oxycontin were found in Dressler’s system.