Not on the knoll no IMO he was never there.
You can't see the lampost in the above and you can't see Hargis, the best evidence to compare Paschall with is Bell, there you see both.
IMHO Hargis went no further than the first blades of grass beacuse wiith this expaination it makes sense we don't see him up there, Weigman hit the dirt and showed he was no threat, Hargis seeing this, turned back.
That's why Wiegman got down, he saw the cop coming for him, that's why the woman got out of the way too, she was lying down already before Wiegman got there but in Paschell she's back on her feet and we see her fall to the floor for a second time. Can you see her do that?
Altgens also reacted to Hargis, he took a still of what the cop was running toward not of the cop himself who had already turned back.
IKE: "... by the time I got there, they were coming back down."
That image was important to him, he ran across the street to get it but in the end we see nothing because Hargis, looking for clues, reacted to anything and it turned out to be nothing but some dumb cameraman.
This is stuff we have to make up to explain what the testimony lacks. Jackson my favourite, says one cop rode up the grass on his motorbike, got off then ran inside the TSBD , making two he saw go in...