Timmy Engel's defence called no evidence, so closing arguments are to be heard on Friday in Lethbridge Court of Queen's Bench.
Court has heard that the torso of Otto (Bunty) Loose, who was 77, was discovered by police in the snowy woods west of Bragg Creek, Alta., in January 2012.
The Vulcan man's hands were missing and his head was found several kilometres away.
A medical examiner who performed the autopsy on Loose was the last witness to testify for the Crown.
Dr. Elizabeth Brooks-Lim said it appeared Loose was dismembered with a sharp object and the body showed no evidence that he was still alive.
Brooks-Lim testified the neck area showed irregular cuts consistent with a "sawing mechanism" being used.
Earlier in the trial, two undercover police officers testified that Engel, 37, confessed to the murder and asked them to help him dispose of the head.
The Crown has also acknowledged that Engel later recanted and said another man did it and he was just pulled along.
Forensic specialist Heidi Godden told court that she was called in to search Loose's car, which was found abandoned in Calgary, and found both blood and flesh samples.
Loose's daughter, Lavonda Justinick, also took the stand and testified that her father suffered from dementia and was too trusting and easily led.
(CJOC, The Canadian Press)