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

Alexander Paffendorf, 20, came under scrutiny after federal agents discovered online messages between him and a 15-year-old who committed a deadly mass shooting in Wisconsin last December.

Alexander Paffendorf expressed regret for his involvement when a judge offered a chance for final words before keeping an order to confiscate his guns and ammunition in place until April 4.

Alexander Paffendorf, 20, was first enrolled in private school back in 2013 after his mom said she witnessed first-hand the alleged ineptitude, according to old social media posts unearthed and ...

Alexander Paffendorf has apologized for his connection to Natalie Rupnow, a 15-year-old girl who fatally shot two people at a religious school in Madison.

Alexander Paffendorf expressed regret for his involvement when a judge offered a chance for final words before keeping an order to confiscate his guns and ammunition in place until April 4.

FBI agents detained Alexander Paffendorf, of Carlsbad, California, according to an emergency gun violence restraining order reviewed by the Milwaukee Journal Sentinel, part of USA TODAY Network.

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

California man who messaged with Wisconsin school shooter barred from gun ownership The order against Alexander Paffendorf, granted Monday by a San Diego judge, is slated to last three years ...

California man detained in alleged plot linked to Wisconsin school shooting - Alexander Paffendorf texted shooter Natalie Rupnow in an alleged plan to coordinate an attack on a government building ...

A San Diego Superior Court judge on Monday approved a restraining order against Alexander Paffendorf that was issued in the days after the Dec. 16 shooting last year at Abundant Life Christian ...