Couldn't fit it all in the title so here we go.
2 guys play Counter Strike.
They have an IN-GAME knife fight.
Guy who loses gets pissed.
Spends 6 MONTHS finding the guy who "killed him".
Finds the man...knocks on his door...and stabs him in the chest with a REAL KNIFE.
Knife missed his heart by an inch.
Man gets 2 years (only?)
https://www.kotaku.com.au/2010/05/man-spends-six-months-plotting-murder-of-counter-strike-rival/