Mankato Police called to a home on Maple Drive early Monday morning walked in to find a man struggling with his 32-year-old son, and say the younger man was actively trying to stab his father.

The responding officer drew his gun and ordered Jeremy Freundl to drop the knife several times but he refused to comply. When backup arrived, the criminal complaint shows the officer holstered the gun in exchange for a taser and Freundl did then drop the knife but refused to get on the ground. The taser was used and officers were able to place Freundl in handcuffs.

Investigators discovered that Freundl was wearing body armor and had cut the phone line.

The father said the struggle to fend off the knife attack continued for 30 to 45 minutes before a witness contacted a neighbor to call the police.

Preliminary charges include assault with a dangerous weapon, committing a crime while wearing a bullet-resistant vest, two counts of domestic assault, and interrupting a 9-1-1 call.

Court documents show that Freundl was convicted in 2011 of possession of a pistol or assault weapon and domestic assault.