I don't know if that is possible in this case.
As co-owner of a vehicle used in several felonies, he is more than just a 'material witness.' I mean, when's the last time you purchased something jointly with another individual? Especially an individual that you didn't know well enough to realize he was going to use it to go on a murder spree?
And while we're at it, why was Mr. Osbourne in Flint, Michigan when they picked him up yesterday? Isn't he a resident of New Jersey? Or am I being overly suspicious?
HJ
No, HJ, you're not being overly suspicious. Add to that that Osbourne was "sharing" a car with a man who lived 3,000 miles away from him (Camden, NJ - Bellingham, WA). This "material witness" business is likely a stopgap, until the auhtorities figure out just who this man is, what his role is, and what they want to do with him.
That's where a woman he met at truck driving school (in Indiana or Illinois) lives, she has been described his fiance. IIRC it's also has a signifigent concentration of Muslims.