If I recall correctly, very early AM tells investigators he tried to call a nice kid living nearby. IMO, AM was referring to Rogan Gibson (RG) when talking about the nice kid. I think it odd that AM did not initially say he tried to call PM's friend living nearby.
It was 2 days later that AM identified RG by name when asked the names of PM's friends. AM talked to Noland but not RG.
IMO, AM was aware of the missed communication between RG and both of the victims and did not want to bring attention to this person residing nearby and the victims on the evening of the murders. From the onset, we see AM trying to control the narrative with good reason-- he was on video placing himself at the kennels, and the video was sent to RG.