As the trial proceeds in the murder of Etan Patz, who disappeared in 1979 while walking to a NYC bus, the Associated Press' Adam Geller reports on how confessions like the one in the Patz murder case can be clouded by defendants' mental illnesses. The presiding judge has found that Pedro Hernandez's confession to Patz's murder is admissible, but some experts said the defendant's history of mental illness "raise difficult questions about whether a suspect is exercising free will in talking to police, and greatly increase the potential for false confessions." Only the final part of Hernandez's interrogation was recorded, not the hours of questioning before he gave a videotaped recording.
Of the 300-plus people who have been cleared by the Innocence Project, a quarter falsely confessed, and 30 to 40 percent of those people were mentally ill or mentally disabled.