Brendan Dassey is a Wisconsin man who, along with his uncle Steven Avery, was convicted of the 2005 murder of Teresa Halbach. Dassey was only 16 at the time of the crime and had a low IQ, making him vulnerable to police interrogation tactics. His confession to the crime was the main evidence used against him and his uncle, but the validity of the confession has been called into question due to concerns about coercion and false promises made during the interrogation. The case gained widespread attention after being featured in the Netflix documentary series "Making a Murderer," which raised questions about the fairness of the trial and whether Dassey's confession was voluntary. Despite multiple appeals, Dassey remains in prison, and the case continues to be a source of controversy and debate.