A 19-year-old New Hampshire man accused of causing or aiding in his roommate's suicide brought a gun, notebook and pen to the scene of his death and instructed his friend on holding the gun at the correct angle to his head, police said in court documents.

Police said Michael Buskey, 19, was found dead of a gunshot wound in the woods near his Plymouth apartment May 8. His death was determined to be a suicide.

Parker Hogan was arraigned Tuesday, WMUR-TV reported . His lawyer entered not guilty pleas on the charge and on charges of falsifying physical evidence.

Police said that Hogan told them Buskey had a court date and didn't want to go to jail. He told them he helped plan Buskey's suicide. They say the two went into the woods near the apartment, where they practiced ways for Buskey to shoot himself.

Hogan left the woods, waited until he heard a gunshot and returned to make sure Buskey was dead, officials said. He removed a phone from Buskey's pocket that had been playing a song on repeat. He brought back the gun and a note Buskey had written to family members. He called police and Buskey's father the next morning.

Police said Hogan posted bail. He's scheduled to appear in court in July.

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Information from: WMUR-TV, http://wmur.com