Neighbors in Carlsbad were surprised by a heavy police presence, later learning it was connected to a school shooting in Madison, Wisconsin. Alexander Paffendorf was ordered to surrender his guns after a San Diego judge approved a gun violence restraining order. He had communicated with Natalie Rupnow, the teenage suspect in the shooting that killed a student and a teacher and injured six others. Paffendorf admitted to discussing plans to arm himself and target a government building. The investigation is led by Madison police, with no threat to the Carlsbad community.