Making a Murderer: Half-brother of Brendan Dassey releases rap song insisting he is innocent

Brendan Dassey and his uncle Steven Avery are currently serving life sentences for murder

Brendan Dassey was convicted alongside Steven Avery and his half-brother is trying to get him out of prison (YouTube)

The half-brother of convict Brendan Dassey from true crime documentary Making a Murderer has released a Christian rap song insisting that both his half-sibling and Steven Avery are innocent.

Netflix series Making a Murderer was filmed over the course of a decade and follows the trial and conviction of the two Wisconsin men, both of whom are serving life sentences for the murder of local photographer Teresa Halbach.

The show has sparked widespread controversy over claimed injustices, with a petition asking The White House to pardon Avery and Dassey racking up more than 400,000 signatures.

In an effort to help free the pair, Brad Dassey has shared three-minute track “They Didn’t Do It” on SoundCloud, protesting that it was “not a fair trial, not a fair game”.

“Come to your senses, everything is just foolish/Things clearly showed it was just a joke/Cops were only there to prod and poke,” Dassey raps, referencing how the prosecution allegedly didn’t “stick to the facts” and the case has got the “whole world talking”.

It reportedly took Dassey more than ten hours straight to write the song. You can read about what’s next for the convicted men and their cases here.