I am running version 1.07.153006 including the Livonia DLC.
I ran from a couple of zombies when I noticed a flying model (couldn't tell if it was player or zombie at this point) about 100m up in the air following me in the distance. I first thought it was a bug, but when I had finished off the zombies that've chased me I could see it was another player who pointed his gun directly at me (in a downward angle while still "walking" in mid air, at this point I knew he really was flying because if he would have been at the same position but on the ground there would've been several buildungs in beetween us; so no line of sight possible). I waved at him with the F1 emote, trying to get in touch with him; he just stood there for about 10 seconds then shot me in the head.
Unfortunately I am unable to provide any footage about the incident.
Please let me know if you need further information.

My Steam 64 ID: 76561198062476172
Server IP: 195.82.158.114
Server Port: 11300
Time of the incident: around 16:45 german time (GMT +2)
(should be easy to find in the server logs, was my first death on that server)