Anonymous, the hacktivist network, has released a message encouraging protests as well as threatening actions against the local police that shot and killed an unarmed 18-year-old Michael Brown.
The teen from the predominant black suburban in Ferguson was shot multiple times by an officer from St Louis County Police Department.
Several local residents and civil rights groups have joined in the protest against the shooting.
"The entire global collective of Anonymous is outraged at this cold-blooded murder of a young teen," Anonymous said in its message. "Not a week goes by that some young person— usually of minority ethnicity—is slaughtered by murderous police in the USA."
St. Louis County Police Chief Jon Belmar said the shooting took place soon after a gas station was looted by two people — one of whom was Brown — on Saturday afternoon in Ferguson, reported Washington Post.
A friend and witnesses told CNN that the Missouri teen was unarmed and had his hands in the air when the Ferguson police officer shot him 'multiple' times.
"My son just turned 18 and graduated high school and he didn't bother nobody," the young man's mother, Lesley McSpadden, told CNN affiliate KSDK.
Stating that it wasn't just enough to "simply [obtain] justice for this young man and his family," Anonymous demanded that the state's congressional representatives should introduce a national set of police conduct standards and call it "Mike Brown's Law."
The group also demanded that police should treat protesters with respect, vowing that any abuse would lead the group to "dox and release the personal information of every single member of the Ferguson Police Department."
"This is your only warning," Anonymous stated.
The group has also set up a website to organize cyberprotests on Brown's behalf and is using the hashtag #OpFerguson to gather protestors on Twitter.
Anonymous has also released a video message on Youtube.