I've searched all three bodies twice now - and it won't complete that mission. Is it a glitch? Or have I missed a body somewhere? There are three bodies, that I can find in that general area. All three are right next to each other.
its a Glitch. Dont panic, you ll come in front of worse ones
IIRC, it's not one of the 3 grey dot bodies on the PDA. It's the one directly where the red bullseye on the PDA points to.
I think there are 4 bodies there in total.