Zachary Ballinger, 21, of Quincy was arrested after a shooting at a home in the 3000 block of South 24th Street early Sunday morning.
The Adams County Sheriff's Department responded to a report of shots being fired around 5:15 a.m.
When deputies arrived they found 21-year-old Austin Michael Hermann on the porch of the home with a single gunshot wound.
Hermann was pronounced dead from that gunshot wound by the Adams County coroner at 5:57 Sunday morning.
An autopsy will be performed on Monday.
Ballinger was arrested for charges of involuntary manslaughter and possession with intent to distribute cannabis.
He is being held in the Adams County jail without bond.