Most of Dahmer's 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 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.