James Dunleavy, 40, who also uses the Irish equivalent Seamus, denies the killing, the Herald Scotland reported. Prosecutors said Philomena Dunleavy, 66, of Dublin was beaten to death in her son's Edinburgh apartment in late April or early May and her body then cut up with a hacksaw.
Aaron McLean-Foreman, 24, a ski instructor, testified he found a skull June 6 while bicycling on Corstorphine Hill. He said he had stopped for a rest and to enjoy a beautiful day and was looking for a place to sit when he spotted a skull.
"Almost immediately the first thing I noticed was very white teeth," he said. "Teeth and a skull."
McLean-Foreman said he was so shaken by his discovery he had to settle himself before he could go to police. He photographed the site so he could lead investigators back to the skull.
Notable deaths of 2014 [PHOTOS]