If you have several trail camera pictures of him, look at what direction he is coming from. Go on google earth and look at the surrounding area and topo. Possibly look for his bedding spot within a mile our so of you current spot and try moving you camera to a new location. If he is coming in a 2 am his bedding spot may be a good distance away. Try narrowing down this area by looking for heavy thick cover and move your trail camera near that new location if you can. Ive done this this year trying to find the core area a large buck. Got him only 3 time on trail cameras over several months. Looked at google earth and topos, moved my trail cameras and know have a good idea where his core area is. Or you could just wait for the rut and be patient.