Strange story. He left 10k in his truck overnight? And then he catches three guys in the act of burglarizing said truck, but they`ve already taken his money somewhere else? Am i missing something ?
The way I read it, Maurice chased the guy down, probably mostly to recover the money, which he assumed was stolen. Maybe he check the truck first and it was not where he expected it.
When the wounded burglar did not produce the money, apparently the burglar said he stashed it somewhere else in the truck.
Maurice took him back to the truck to make sure the money was there.
He is being charged with kidnapping for forcing the burglar to go get the stolen money. My guess is if he had counted on the police to force the burglar to tell them where the money was, he would never have gotten his money back. But why he left $10,000 in a truck is a mystery.