Beginning in the early hours of July 23, 1991, Dahmer was questioned by Detective Patrick Kennedy as to the murders he had committed and the evidence found at his apartment. Over the following two weeks, Kennedy and, later, Detective Patrick Murphy conducted numerous interviews with Dahmer which, when combined, totalled over 60 hours. Dahmer waived his right to have a lawyer present throughout his interrogations, adding he wished to confess all as he had "created this horror and it only makes sense I do everything to put an end to it." He readily admitted to having murdered 16 young men in Wisconsin since 1987, with one further victim-Steven Hicks-killed in Ohio back in 1978.
Most of the victims had been rendered unconscious prior to their murder, although some had died as a result of having acid or boiling water injected into their brain. (As he had no memory of the murder of Tuomi, he was unsure whether he was unconscious when beaten to death, although he did concede it was possible that his viewing the exposed chest of Steven Tuomi while in a drunken stupor may have led him to unsuccessfully attempt to tear Tuomi's heart from his chest.) Almost all the murders Dahmer committed after moving into the Oxford Apartments had involved a ritual of posing the victims' bodies in suggestive positions-typically with the chest thrust outwards-prior to dismemberment.