Someone in the San Diego sheriff’s office thinks police protesters are drug-addicted ‘animals’

The San Diego sheriff's department launched an investigation after someone sent obscenity-riddled hate mail to an activist group protesting police brutality.

But investigators soon learned, like the babysitter in the urban legend, the calls are coming from inside the house.

The activist group United Against Police Terror discovered the blog comment was posted from a computer, with a unique Internet Protocol address, within the sheriff's department, and authorities launched an internal affairs probe of the case, reported the San Diego Union-Tribune.

The comment, posted using a Gmail address belonging to "Sisckokid1560," described the activist group's website as "a bunch of stupid bullsh*t" and used racial slurs against black protesters in Ferguson, Missouri.

"F*ck you, You stupid pieces of sh*t," the writer says to start the comment, which triggered an email notification after it was posted.

“The email said ‘real citizens’ do their job, and that the (Ferguson) protesters were looting, were animals," said Cat Mendonca, a spokeswoman for the group. "There was a lot of racial stuff. But we are the community, we’re taxpayers -- we never incited any violence.”

The blog comment, which was typed in all caps and littered with spelling and grammar errors, claims anyone who questions police is likely a drug-addicted criminal who receives government assistance.

"The good people of this county and country will always prevail over scum like you," the emailer warns. "Good luck. Your going to need it.”

A spokesman for the sheriff's office said the comments were being taken seriously, although multiple employees said their computers automatically correct spelling errors.

Activists urged investigators to publicly identify the sender.

“The sheriff has two choices: to reveal the prankster who got through their IP address or reveal the employee and terminate their employment,” said Jeff Olson, an activist with Socialist Alternative.

The group -- which opposes harassment, violence, and abuse of power by law enforcement officers -- filed a complaint with the Citizens Law Enforcement Review Board.

Watch this video report posted online by KNSD-TV: