A Boulder man faces drug charges for his involvement the drug overdose of his friend, a Colorado University graduate. According to The Daily Camera, police suspect he sold drugs days after the CU grad’s death to another young man in Longmont who also died of an overdose.

Court and police documents showed that high school buddies and fraternity brothers Layne Burke Weinberg and Tyler James Wilkinson, both 23, injected a mix of cocaine and heroin at Wilkinson’s apartment. Wilkinson called an ambulance the next morning after finding Weinberg unresponsive. Weinberg’s death was ruled an accidental drug overdose after medical examiners found heroin, oxycodone, cocaine and marijuana in his system. Boulder police determined from interviews and text messages that Weinberg bought the drugs from Wilkinson.

Michael Berger of Longmont died of a fatal oxycodone overdose less than a week after Weinberg died. He was 38. Authorities learned that Berger bought the drugs from a man who got the drugs from a person named “Tyler”. Cell phone records confirmed that Wilkinson was the man he was referring to.

Wilkinson turned himself in after a warrant was issued for his arrest. Against the advice of his attorney, he talked to the police and told them what had happened. He said that Weinberg had been drinking earlier in the evening and came to his place to hang out. He said Weinberg was “perfectly fine” the night before and he couldn’t believe he was gone.

At press time, Weinberg remained free on bond, however he has a Nov. 3 court date. He faces charges of possession of a controlled substance and distribution.

Wilkinson and Weinberg were high school friends and fraternity brothers, according to police reports. Wilkinson was a fifth-year senior at CU, and Weinberg graduated Dec. 2010.