James Alex Fields Jr., the man charged with killing a counterprotester at a white nationalist rally in Charlottesville, Va., over the weekend, was reportedly accused of threatening and beating his mother several years ago.

According to The Associated Press, records from Kentucky’s Florence Police Department say Samantha Bloom repeatedly called 911 in 2010 and 2011 over her son, saying he was on medication for an anger management issue.

Fields was reportedly arrested after he threatened his mother with a knife, and in a separate incident allegedly struck her in the head and locked her in the bathroom.

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The 20-year-old man, currently a resident of Ohio, has been charged with second-degree murder, failure to stop in an accident that resulted in death and malicious wounding.

Heather Heyer died Saturday after a vehicle, which police say was driven by Fields, rammed into a crowd of counterprotesters. Multiple others were injured in the attack, which took place at a "Unite the Right" rally meant to protest the removal of a statue of Confederate Gen. Robert E. Lee and the renaming of Lee Park.

A man who once taught Fields in school told a local news outlet that Fields was "infatuated" with Nazis.