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

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

A Carlsbad man who authorities say communicated with a Wisconsin school shooter appeared in a San Diego courtroom on Friday.

Alexander Paffendorf appeared in court for a gun violence restraining order. The hearing was continued to April to allow time for investigation.