He's on pubic record as saying he kept a handgun on his bedside table.
Bedside table I assume then its beside the bed. The same bed where his Girlfriend wasn't lying in at the time.
The same bed he had to walk over to in the pitch black fumbling for his gun without noticing that his girlfriend was no longer in bed
You'd think if he thought there was an intruder he would have whispered to his girlfriend to stay calm, stay quiet and call the police