At roughly 4:23 PM US Central Time (give or take a few minutes) I was killed by a hacker while playing on the DayZ EU DE 1354 official server. I began taking shots when it was nearly impossible for anyone to see me, however I figured the player was just really good. Then, I was shot and knocked unconscious while walking up the stairs. I thought it was very unlikely that someone could have legitimately hit me at that position, but I didn't have conclusive evidence of a hacker. Then, I entered a room on the top floor of an apartment building with no windows, and closed the door. I was shot and killed through the walls, confirming that I was killed by a hacker.
Details:
Steam64 ID: 76561198390813237
Approximately 4:23 PM US Central Time
DayZ EU DE 1354
One of the apartment buildings just north of Elektrozavodsk, overlooking the city