A California man apologized for his connection to the 15-year-old shooter who killed a student and teacher in a Madison school shooting.

Two people were killed, a suspected 15-year-old shooter is dead and at least six others were injured on Monday when a student opened fire at Abundant Life Christian School in Madison, Wisconsin, authorities said.

Multiple people have been injured in a shooting at a Madison Christian school, according to Madison police. The shooting took place at Abundant Life Christian School, 4901 E. Buckeye Road, Madison police said.

A California man has apologized for his connection to a 15-year-old girl who fatally shot a teacher and a fellow student at a religious school in Wisconsin

Alexander Paffendorf expressed regret for his involvement in court on Friday without explaining his precise role.

The shooter is believed to have only fired one of the guns, Madison Police Chief Shon Barnes told the Journal Sentinel on Wednesday night.

Alexander Paffendorf was detained late last month after FBI agents said he was plotting a mass shooting with Natalie "Samantha" Rupnow.

Alexander Paffendorf told a judge Friday in San Diego that he would accept the consequences of his actions without explaining his precise role.