What kind of equipment ?
If its receivers, give them back to him as he needs to return them or he will get billed for them.
Any recvrs he may have given you, cannot be authorized by someone else as they are leased.
You turning the recvrs in won't do him any good, he would have to return them so they are taken off his bill .... usually you have 7 days after the boxes are delivered to return them, otherwise they bill you like $400 for each recvr.
Thats gonna be quite a bill for him ...
You say he's gone .... when he gets that bill, i bet he finds you right away.
Like vashog said, depending on what recvrs you have, they may not ned them back, but if they are any of the Genies they probably will.