San Francisco police threatened after officer-involved shooting

April 5, 2014 9:06:20 AM PDT
San Francisco police have confirmed threats have been made against the department following a fatal officer-involved shooting.

Alejandro Nieto, 28, was shot and killed by officers last month in Bernal Heights Park. Police say he pulled out a stun gun and pointed it at officers, who thought it was a real handgun.

An anonymous threat vowed revenge for Nieto's death.

The call has prompted the department to warn officers to be on high alert while doing their jobs.