Investigators say the 22-year-old suburban Pittsburgh man was playing video games in an upstairs bedroom when he heard his front door open. The man initially thought it was a family member but saw an armed man wearing a ski mask when he looked downstairs.
Authorities say the intruder bound Derick Shaffer and led him around the North Apollo home to locate valuables, then fled in Shaffer's car. Shaffer reached a friend over his Xbox Live headset and had him call police.
The missing car was located about an hour later. Police questioned three people but are still trying to identify a suspect.