APPLE VALLEY, Minn. — Alexander Petrovich, who was described by a family friend and relative and neighbors as an undiagnosed paranoid schizophrenic, shot his mother and younger brother in their Apple Valley home before turning the gun on himself, according to a Tuesday, Feb. 25, court filing.

Autopsies by the Hennepin County Medical Examiner’s Office determined that Janice Petrovich, 60, and Jonathan Petrovich, 23, were victims of homicide with wounds to their bodies and that Alexander Petrovich, 27, was found with a “likely self-inflicted gunshot wound,” according to an application for a search warrant filed in Hennepin County District Court.

Two dogs were also found fatally shot Saturday inside the house at 13640 Upper Elkwood Court, the court filing said.

Apple Valley police Capt. Nick Francis said Tuesday that official identifications and manner of deaths are expected to be released by the medical examiner’s this week.

Those who knew the elder Petrovich brother told investigators that he was subject to “fits of rage and confrontational behavior,” the court document said.

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The search warrant application was for a home at 8201 Westbend Road in Golden Valley that used to belong to James Petrovich, the father of the two brothers and Janice’s ex-husband. James died in July, but Alexander spent a lot of time at the home, the court document said.

A search of the Apple Valley home Saturday and Sunday by authorities turned up a receipt for a gun in Alexander’s bedroom and a gun and ammunition receipt in a vehicle, according to an inventory report filed Tuesday in Dakota County District Court.

According to Apple Valley police and the Hennepin County search warrant application, the shooting was called in at 12:18 p.m. by a family friend who went to check on someone at the home who had not shown up for a planned event. She went inside and discovered all three family members dead in separate rooms. The dogs were on the lower level.

Police officers found a pistol and ammunition in the house along with a cell phone.

Agents and laboratory technicians from the state Bureau of Criminal Apprehension processed the scene and found more firearms, several laptop computers and cell phones and “evidence supporting a murder/suicide scenario,” the court document said.

Other calls to the home

According to a review of police calls going back about four years, officers responded to the home five times since April 2017, when a family dog got loose and fought with a neighbor’s dog. Other calls were for a medical, a hit-and-run investigation and death notification for James Petrovich.

On Aug. 31, 2017, Janice reported she had a dispute with Alexander. She said he lives with her off and on and that he also lives on a boat he owns. She told officers that Alexander and Jonathan had been arguing the previous night.

“Janice tried to have a conversation with Alexander about getting along with his brother and she reported that he became enraged,” the police report read.

Janice said that Alexander swore at her, began to yell and punched 11 holes in drywall from his bedroom to the front door. She said then left and never struck or threatened her and that “she was not afraid he was going to harm her,” the report read.

An officer called Alexander, who admitted to punching the holes in the walls after losing his temper. He was cited for fourth-degree criminal damage to property, pleaded guilty to the charge on Jan. 11, 2018, and was sentenced to 45 days in Dakota County jail.

Besides minor traffic and parking tickets, it was his only conviction in Minnesota, court records show.