A child abuse investigation in Mankato led to four felony charges related to illegal weapons and ammunition possession against a father banned from gun ownership after a previous conviction for making terroristic threats.

Mankato Police and a Blue Earth County child protection specialist went to the home after an incident in early May, in which three children – ages 10, 11, and 13 – reported that their father, 36-year-old Christopher Neilsen, had been drinking and “lost it” toward the youngest child.

The older child told police that her grandfather had to stop their father, who was screaming and had given the 10-year-old a bloody nose, and they were afraid because Neilsen had a gun in the home.

A search warrant was issued and the criminal complaint shows investigators found three lockboxes containing several different types of ammunition, as well as a black holster with a loaded magazine.

In a phone call, police say Neilsen admitted to possessing a gun and later turned over a 9mm Bersa handgun.