"He does this sometimes," the eyewitness exclusively tells E! News. "He'll be back."
So, where did our insider last see the Terminator: Rise of the Machines star?
Two sources tell E! News that Stahl, wearing a white T-shirt and tan pants, was spotted carrying boxes outside a West Hollywood apartment complex on May 10, the day after the actor's estranged wife, Roseann, says she last saw him.
The person Stahl talked to at the complex would not comment on his visitor's mindset at the time, but says that the 32-year-old father took off last Friday or Saturday.
Roseann contacted police on Monday.
Stahl and his wife had been locked in a custody battle since February, when Roseann filed court documents to request that he only be allowed supervised visits with their 2-year-old daughter—and that he be ordered to take a drug test before he saw the child.
UPDATE: After further discussions with the source, he can still confirm he was with Stahl last week but cannot single out the exact date.