User: Stolen Bread
STEAM_0:1:13782774
WCS

Suspected walls. A few times I was invisible as Vagabond he killed me.
This happens, but he always seemed to look straight at me every time.
Also some obvious "I know where they are" movements at other times, seeming to spot people and prefiring.
Note he even changes directions at times when players on far sides of the map move to a new spot.
By the time he reached 32 kills, I was convinced. See for yourself.

I checked several times, he never bought any items and was Human Alliance lvl 19 at the time I looked.

Demo:
Attachment 4898