Three police officers testified that Dobie confessed after questioning, but they had no recording of this. They said that he told the officers that after the stabbing he jumped out of the bathroom window, dropped the knife in the Knippers' yard, and ran to his grandfather's house, where he hid his shirt underneath the porch. The investigators returned to the Knippers' home, where they found a kitchen knife in 4 in. (2.5 cm) of damp grass. The officers later retrieved the shirt from where Williams hid it, but there was no blood or other forensic evidence on it. At the trial, several investigating detectives testified to the content of Williams' confession.