Code:
setxkbmap -option terminate:ctrl_alt_bksp
Thank you!
This does the trick, but I'm unable to make it run at startup. I've tried putting it on /etc/xprofile /etc/X11/xinit/xinitrc ~/.xprofile and ~/.xinitrc
I still can't kill my Xorg unless i open a terminal and write 'setxkbmap -option terminate:ctrl_alt_bksp' before.