First, thanks for taking your time to make this warn request and posting your video. After watching the latter several times, I came to the following conclusion :
1) Regarding Belarus' death, it appears clear to me that he was shot to death by the player "kapook", and that it was pure RDM, as I couldn't read nor hear any warning prior to the shooting.
2) Regarding your death, doubts are not allowed, you were killed by the player "Gosuh meh", who showed himself responsible of a RDM (joining fight)
Your warn request has been
I will warn them and talk with them about this as soon as they are online, to make sure that they do not RDM again.
We are sorry that both of you were victim of such a rule break, and hope that you will keep having fun on our servers.
Have fun
EDIT : Can someone please lock ? Thank you