Send him a thing in the mail saying that he's won a "Free Bigscreen TV" or an "all inclusive everything included getaway".
It worked for our local police.
They rented a banquet room at the Holiday Inn and sent out "freebie" postcards to everyone in town that had a warrant out for their arrest to their last known address or a relatives address. It's amazing how a relative that once said he didn't know where they were could find them when a free big screen TV offer shows up.
So they all show up to the event, and line up at the sign in table where they have to register and show picture ID and verify who they are.
Then they go into the banquet room, only to be arrested and sat in a chair to await the next person coming in....
They arrested over a hundred people that day and all got a "All expenses paid getaway" to the local jail.