Break in with a gun, act in self defense?

This one is pretty unbelievable. But, hey, welcome to the People's Republic of Massachusetts. Let me get this straight. They bust in to the house of someone in their 60's with emphysema and multiple heart attacks in their history. Said person may, or may not, have had a knife. So, three, rather tough looking teenagers, with a gun, vs. the guy who can't breathe and his heart stops occasionally. Where was the self defense claim? From the old man? Nope. Those poor put upon teenagers who broke into the house and threatened the guy with a gun, an illegal gun by the way, were forced to defend themselves from that wheezing old monster...

Oh, and storing the gun in a bucket of rock salt... I'm sure that was good for keeping the thing in proper operating condition.

This type of story just makes me spit & curse.