[Drew68]

but robbery as the primary motive...?

Why is that hard to believe? Our prisons are full of black criminals who have murdered people during simple robberies that they otherwise would've gotten away with. Often for no reason while the victims are being totally compliant.

[stylin19a]

If robbery was the motive, I wonder... why didn’t they take the car?

[mewzilla]

Call it a hunch. I’m betting this wasn’t about a robbery.