Police say threatening remarks at a Rochester apartment complex led them to an arrest last week, and according to court documents, an Austin man had a fully automatic assault rifle, handgun and drugs.

Police arrested Kyle Steven Williams, 24, after 10:30 p.m. last Tuesday in Rochester. Williams was charged Friday in Olmsted County Court for being a felon in possession of a firearm, possession of a machine gun and fifth-degree drug possession.

Rochester Police went to the 2000 block of 41st St. NW on Sept. 17 after a witness said Williams appeared to be high and was upset because someone owed him money. According to the Olmsted County Court complaint, Williams said he was going to “take care of business.” The witness also mentioned seeing guns in Williams’ SUV. Officers learned Williams was on probation and later detained him after a traffic stop. According to the court complaint, Williams has prior convictions for first-degree aggravated robbery and terroristic threats.

Police got a search warrant on Sept. 18 and searched Williams vehicle, where they found a fully automatic AK-47 assault rifle, a banana clip with 16 rounds of ammunition, a .45-caliber handgun with ammunition, 2 grams of methamphetamine and $3,000 in cash. A weapons expert examined the AK-47 and discovered a component had been filed down and converted to fully automatic.

Williams’ next court appearance is set for Oct. 3.