Mods, remove if you deem this inappropriate.
This is a blown-up image of the marks on Patricia's chest, claimed to have likely been made by an icepick or similar object. Although some have speculated that the injuries were made with a garden-fork-type implement, judging by the angles, it's clear that these wounds were done one at a time.
The autopsy report indicated that the wounds were between 3/4" to 1" deep and done post-mortem. (after death)
I have drawn red lines that indicate the angle of entry.