Hello. I was the staff who PK'd you. The PK was approved by @Hound. You broke FearRP for Initiating a Gunfight and dying which is visible in your clip at the Timestamp 3:10, as per:
Dying after initiating a shoot-out [De-rank (Lower Administration), a PK may be authorized by UA if deemed necessary or if it falls under RDM and/or FailRP]
If you wish to PK others for initiating a gunfight and losing, you're more then welcome to make a staff report when that does happen. If you don't report it, they wont get PK'd.
Additional Footage:
https://medal.tv/de/games/garrys-mod/clips/2dHK1mhefg1V4z/XKG1xgHMVLwe?invite=cr-MSwxanMsMjMyMDk1MjY3LA?mobilebypass=true