UPDATE April 12, 2018 6:56 a.m. PT: The FBI has arrested Shawn Weatherhead.
SAN FRANCISCO -- (KRON) -- The FBI in San Francisco is looking for a man accused of making threats against law enforcement.
The FBI says Shawn Frederick Weatherhead, 45, is a transient, with a distinctive "dork" tattoo on his neck.
Weatherhead has ties to Eugene, Oregon and Reno, authorities said. He made violent threats against law enforcement and is known to carry a switch-blade knife, police said.
He is also thought to be using illegal narcotics.