PITTSBURGH (KDKA) — New information is emerging one day after police charged a man in connection with the gruesome murder and dismemberment of his mother and stepfather in their Penn Hills home.

Investigators have recovered a number of garbage cans with body parts inside, but some others are still missing.

READ MORE: Man Accused Of Killing 2 Women In Pa. Now Charged With Murder Of Pregnant Woman In Michigan Who Disappeared

If those body parts were taken away during Monday’s regular garbage collection and dumped in a landfill in New Stanton, officials say they may never be recovered.

A source tells KDKA’s Harold Hayes that investigators have opted not to make a landfill recovery, because by now, Monday’s deposits there are layered over, and the time and risk involved in a recovery operation like that is outweighed by the physical evidence they already have.

Meanwhile, the mental health and history of defendant Frederick Harris III will likely play a role in his case.

READ MORE: Police Chase Ends On Route 28 After Shooting And Carjacking In Larimer

In 2011, after Harris was found squatting in a $625,000 home in Murrysville, a mental health evaluation was ordered and he was diagnosed with bipolar disorder and prescribed him anti-psychotic drugs.

That could affect the length of time it may take to even schedule a preliminary hearing in the case.

He could be sent for evaluation for months to determine competency to stand trial.

“That’s exactly what will happen, and my understanding is that’s exactly what happened with this particular defendant previously,” said Jeff Burkoff, of Pitt’s Law School. “That for a period of time he was incompetent, and you know these days, you can help to make someone competent through appropriate medication, et cetera, but they may not stay competent all their life. You release them and their taking of medication goes downhill. That sort of thing happens.”

MORE NEWS: Sewickley Academy Has Suddenly Become A Hotbed Of Division

You May Also Be Interested In These Latest News Stories
[display-posts category=”news” wrapper=”ul” posts_per_page=”4″]
Son Charged In Grisly Deaths Of Mother, Step-Father (12/16/14)
Double Murder, Dismemberment In Penn Hills May Have Been Sparked By Argument (12/17/14)
Join The Conversation On The KDKA Facebook Page
Stay Up To Date, Follow KDKA On Twitter