Lot of bad advice on here,, holy carp !
If you think you can go buy some MB650's, and just lay them down , you'll be sadly disappointed at what you'll find in that trap,, Catching yotes by the foot is fairly complex,, and learning to bed a trap properly takes practice to keep them from detecting it.
Snares are a little easier, but again no guarantee you wont find the neighbors dog or cat wound up, choked to death.
Best advice I could give without extensive typing is bait with rabbits, or mice, maybe some stinky skunk-based lure from commercial trappers would help, and sit on the pile until you see it again.
They are smart, and spookey, but if it's a juvenile, you may get him dumb enough, that he'll come back after getting shot at.