Perper is the correct spelling. I thought the name sounded familiar so I googled it and the first hit was a local Pgh article about the county coroner's office and it mentioned both doctors.
Sounds like you have a crack team of reporters at that local station.
Just typical - and this one is the best of the bunch. Top 5 market, you'd think they could get some spellers, but noooooo.
Thanks for the spell check!