So everything else is fine but it's the door that confuses you? That's the big conspiracy that's one conspiracy too far? Put down the crack pipe.

Edit: Just to be clear. Here are our choices.

1. The intruder opened the door, so he could be arrested? Why would he do that?
2. An elderly man, fighting for his life against an intruded with a hammer, couldn't be bother to drop his beer to open the door or defend himself against a deadly hammer attack? Not likely.
3. Someone ELSE opened the door.

So everything else is fine but it's the door that confuses you? That's the big conspiracy that's one conspiracy too far? Put down the crack pipe.

Edit: Just to be clear. Here are our choices.

1. The intruder opened the door, so he could be arrested? Why would he do that?
2. An elder man, fighting for his life against an intruded with a hammer, couldn't be bother to drop his beer to open the door or defend himself against a deadly hammer attack? Not likely.
3. Someone ELSE opened the door.

So everything else is fine but it's the door that confuses you? That's the big conspiracy that's one conspiracy too far? Put down the crack pipe.