[beaconblackleg]

It's a little thing but "...to find four men armed with a gun." Were all four of them holding onto it together?!?!

Arm-chair editor fix gotten so back on topic...

I'm guessing by the names and titles this took place in Canada or England. So understand their self-defense laws may not be as generous as those we have here in the US. And even then it differs from state to state. It may be that there was no evidence of a struggle inside the residence and the stabbing could have taken place outside in the dooryard or he may have chased them into the alley where they found the fella after he bled out. In some states here in the US you wouldn't be charged with a criminal offense if you stabbed them on your front porch as they tried to come in while in others the attackers have to be fully inside your home before you can use deadly force without repercussions.

All depends on where ya live mate.