Making A Murderer: Anonymous claims to have evidence that Netflix documentary’s subject, Steven Avery, is innocent

The new documentary explores a murder investigation that is claimed to have led to a man being convicted of rape and murder on flimsy evidence

The hacktivist group Anonymous have declared war on Isis following the Paris attacks (Getty)

Anonymous claims that it has evidence that will prove that a convicted murderer is in fact innocent.

Supporters of the online activism movement say that they have evidence that will help Steven Avery, the subject of Netflix’s ‘Making a Murderer’ documentary. The series follows Avery as he is convicted in a case involving the Manitowoc County Sheriff’s Department. At Avery’s trial, the defence suggested some of the evidence against him might have been planted.

The group has set up a Twitter account to taunt the two police officers who are profiled in the film, claiming that they have found emails and phone records that support the allegations.

Those behind the group posted a threat to the local sheriff’s department that they would release the documents unless they were officially released. The deadline that was given in that tweet has since passed, but no information has yet been made public.

The account has said that another group — Ghost Security, which is close to Anonymous —will be taking charge of releasing the documents. They would be unveiled “shortly”, the account posted.

The Netflix documentary highlights a range of alleged problems with the case, including what critics have said was coercive questioning and a reliance on possibly dubious evidence.

Avery is currently serving a life sentence in prison for the murder of photographer Teresa Halbach, who disappeared in 2005. He has no hope of parole.

Anonymous has been actively involved in a range of campaigns in recent months. Those have included attacks on Isis as well as the Ku Klux Klan.