Why do you distrust him in the first place and what has he actually done to convince you he's worth trusting again?

We need some more details to give you an answer.

We need some more details to give you an answer.

You don't give the reason you distrust him but I'd say once trust is broken you should give that person a wide berth.  You either trust somebody or your don't there's no halfway and if you've been given a reason not to trust then I'd say a future with him would be very difficult.