A man who visited the Christchurch flat the morning after Hayden Miles died says he can't forget the dead boy's face.
Gavin Gosnell denies murdering the 15-year-old on the night of August 22, 2011.
The witness, who has name suppression, told the High Court he was called to the address by a mutual friend of his and Gosnell's.
He was told there had been a drunken fight and Gosnell believed Miles was dead, he said.
The witness said he entered the lounge and immediately saw MIles was dead because there was blood and swelling all over his face.