I'd run around my house looking for an object to stick in his hand, it's much easier to convince the police that you were in fear for your life, & it was self defense. 2 head shots, clean up the mess, watch a movie, hit the sack.
call 911, tell them thiers an intruder. try to get a good look at him. if you can see his face clearly with out putting yourself in danger, you can tell the police what he looks like if they need toknow. it may help find him if he gets away, and he may have broken into others homes.
I just want to know what happened when you seen face to face? Did this really happen. I count on that it didn't because either that person would be in handcuffs or you would of gone to the police & they would of handled the situation or at least in the process of an investigation !
If you saw the door cracked open or it didn't seem the way you left DON'T even go inside. If you didn't know and then found out LEAVE immediately and call 9-1-1. If you have a CHL or close to a gun, use it on them. If you break into my place you'll meet one if not multiple friends of mine ( Springfield XD .45, Ruger .22 pistol,Remington 870 tactical 12 ga, or a sig sauer .9mm)