Pay them off (1000 Gold)

You drop a heavy purse on the ground in front of them. Some gold coins are even shining through the open mouth of it. The three men look at each other, one of them picks up the purse, checks it a few times, to make sure all of it is gold inside, then they turn towards the door, beg your pardon for bothering you and leave. The king has been informed, they found nothing against you, so you are no longer suspected of theft.