LAS VEGAS -- The teen accused of opening fire with a shotgun at a home in the northwest on Tuesday used to be friends with a boy who lived in the home, according to his arrest report.
Ayden McKinnon, 14, fired several rounds into the front door of the home, police said.
A man inside the home screamed for his family members to "get down" and he, and one of his sons, retrieved guns and fired several times back through the door striking McKinnon, the report said.
The man told police, McKinnon and his son were schoolmates and friends, but had a falling out the previous year over a girl.
McKinnon was transported to University Medical Center in critical condition. He is facing four accounts of attempted murder with a deadly weapon.