 Dahmer was not charged with the attempted murder of Edwards, nor with the murder of Tuomi.He was not charged with Tuomi's murder because the Milwaukee County District Attorney only brought charges where murder could be proven beyond a reasonable doubt and Dahmer had no memory of actually committing this particular murder, for which no physical evidence of the crime existed.At a scheduled preliminary hearing on January 13, 1992, Dahmer pleaded guilty but insane to 15 counts of murder.