A Lake Geneva man made his initial appearance in Walworth County Court on Friday on charges he fought with his elderly landlord last week, leading the landlord to fire a gun as a warning shot, according to a criminal complaint.

Kevin M. Aumuller, 49, of 721½ North St., Lake Geneva, was charged Thursday with aggravated battery of an elderly person, criminal trespassing, obstructing an officer and disorderly conduct stemming from the Jan. 25 incident.

Lake Geneva police at about 11:53 p.m. responded to Aumuller’s home for a report of a possible shooting, according to the complaint.

Aumuller told police his landlord knocked on his door while he was sleeping and accused him of burning plastic, the complaint states. He then said the landlord struck him, forced his way into his apartment, pushed him into a wall and struck him in the face.

Aumuller told police he hit the landlord, who fell to the bottom of the stairs, ran into his apartment, grabbed his gun and shot at Aumuller in the stairway, according to the complaint.

Police said Aumuller showed no visible signs of injury, and there were no bullet holes in the stairwell, according to the complaint.

Police spoke to the 77-year-old landlord, who said he woke to the smell of chemicals, knocked on Aumuller’s door and received no answer before saying he would call the fire department, the complaint states.

Aumuller opened the door and punched the landlord in the face, according to the complaint. The landlord had visible cuts on his face.

The two wrestled and fell to the bottom of the stairs, the complaint states. The landlord said Aumuller followed him into his apartment, where he feared for his life and fired the gun as a warning shot.

Police reported finding a spent shell casing in the landlord’s bedroom floor, according to the complaint. They found a through-and-through bullet hole in a desk chair.

Aumuller, who tested for a blood-alcohol concentration of 0.126, told police he knew the landlord had serious health issues and knee problems, according to the complaint.

He is next set for a preliminary hearing at 3:30 p.m. Tuesday, Feb. 13.

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