In the article, it says his wallet was found empty so Bryce's biological father says that maybe Bryce was robbed in the hour between him leaving his girlfriend while at the babysitters to when he arrived at the (wrong) apartment.
Extremely high alcohol level and marijuana in blood stream. While possible he was robbed, more likely he: 1) Lost Wallet 2) Got Angry and Tossed Wallet 3) ETC.
Based on entering wrong apartment, pretty obvious BDJ was very impaired and logic doesn't apply.