A Blaine man charged with fatally shooting his estranged wife on Friday called police and then told officers who arrived, “I can’t believe I did it” and “I guess I don’t have to worry about a divorce now,” according to a criminal complaint filed Monday.

Matthew Lynn Jansen, 46, was charged with second-degree murder and held on $1 million bail.

According to the complaint by the Anoka County attorney’s office:

A man called 911 Friday night saying he had killed his wife by shooting her. He said the gun was not loaded anymore and was in the foyer of the home in the 2700 block of 95th Avenue Northeast.

When police arrived, they told him to exit the house without the gun. He did and was identified as Jansen. Officers found the body of Mary Jo Jansen, 46, on the floor in an upstairs bedroom. She had a gunshot wound to the neck or head. Police found two spent .44-caliber cartridges in the bedroom.

An unloaded Smith & Wesson .44-caliber handgun was found on the steps in the home.

According to the complaint, family members told police that Mary Jo Jansen had served her husband with divorce papers around Thanksgiving. While the divorce was pending, the couple remained in their home. Recently, Mary Jo Jansen decided to move out and was planning to do so on Saturday.

Family members said that after an “incident” in December, firearms had been removed from the home.

Detectives found a receipt for a Smith & Wesson .44-caliber purchased this month from a local retailer. Police said they found an empty handgun case in what was believed to be Matthew Jansen’s truck.

The Anoka County medical examiner’s office determined that Mary Jo Jansen’s death was a homicide caused by gunshot wounds to the neck and chest.

Jansen is scheduled to appear in court next on March 18.