Police: Teen Alexander Koser shot, killed by stepfather Eric Brandon in Milton

A Fulton County man shot and killed his 16-year-old stepson on Sunday afteoon, police said.

Milton police said Eric Brandon, 46, fired three shots with a 12-guage shotgun at his stepson Alexander Koser at point-blank range.

Police said Brandon called 911 himself from their townhome on Genesis Way around 2:30 p.m.

Milton Police Capt. Shawn McCarty said Koser was dead at the scene.

”Alex was like my son and this hurts, it hurts real bad, said the teen’s mentor, Rodney Cook.

Brandon did not resist arrest and was taken to the Fulton County Jail.

Cook said Brandon has been married to Koser's mother for five years or more.

"They called Eric dad. He wasn't their biological father, but they called him dad," Cook said. "This is really devastating to the family."

Koser was a student at Alpharetta High School.

Police initially reported the teen was Brandon's son.

Milton Police have charged 46-year-old Eric Brandon with murder