Refutable proof - I'm not sure if you're playing stupid or if you're genuinely fucking dumb (likely the latter), but I'm confident that you've been told dozens of times that using the tab menu and chat to determine who killed you (or committed any other rulebreak) is pure conjecture and therefore inconclusive evidence.
Next time get a staff member to deal with the situation or ask them for the logs at the very least, so you don't have to harass the CM team for the 973967th time this year with your brainless reports.