One should not accuse another person of stealing without evidence.
Will bought an expensive smartwatch that has gone missing and strongly suspects his roommate.
Will wants to find out what happened to his smartwatch.
Will looks around for it more carefully and uses the device tracker to track it's location.
Will confronts his roommate immediately when he gets home.
Will finds out the last location was elsewhere and his roommate likely didn't steal it.
Will feels bad afterward because he's not sure if his roommate took it.