Making a Murderer: why innocent people confess under interrogation

Many people have been riveted by the Netflix series Making a Murderer. One of the story's most compelling aspects is Brendan Dassey’s confession, under interrogation, to his role in a gruesome murder. People often take such a confession as a clear indication of the suspect's guilt. Why would someone confess to a serious crime unless they are guilty? Innocent people do confess to crimes they did not commit. To date, the Innocence Project has worked to exonerate 337 people in the US. In 88, or 27%, of the first 325 exonerations, the innocent suspect confessed, even providing details about the crime. But what leads innocent suspects to falsely confess to very serious crimes?