When they gots to go, you'll need to get up early in the morning or at some convienent time when all is quiet wait for him to come out, when he does, a .22 will do the job.
I used to kill them often, but not much anymore, had one that became kind of a pet, that is another story.
I'd imagine that in different places, the foliage they like probably varies, around here, even as its been dry, they have plenty to eat, might be your garden is more attractive than other things growing nearby. Used to be, if I saw one in the garden, or in the field nearby, I used to quietly open a window and carefully place a shot to take him out. After observing them later on, I noticed they were not touching my plants, they were chowing the weeds.
I've got 1 or 2 that live nearby, and they regularly pass through my garden when the fence is out, they don't bother any of the plants, which is shocking, the deer would cause more damage, but I've moved the garden right next to the house where they won't bother it. When I'm done with planting, mulching and staking tomatoes, I put up a cyclone fence that I salvaged from a job years ago, so while working in there, I take it down until I'm done for the season. Nothing gets in except the chipmunks. I could wrap chicken wire on the bottom portion of the fence fabric, but have not needed to do so yet as they don't usually bother anything, well last year a pair of them were getting cherry tomatoes, so I took 2 shots at them, LOL too close, I missed, but it scared em off, they smartened up quickly after that, never came back.
Before I fenced it off, my buddy the woodchuck, would wait and he knew exactly what ones, the same ones I'd be watching, which were always the best tomatoes getting close to being ripe and he'd chomp the one I'd want to pick ! That is the price I paid for making friends with a rodent, LOL (he was a really cool little guy) then I fenced it off, he did not try and dig under it either. It would tick me off, so I figured cut the bitten part out, wash and still have some of that tomato, pathetic though, sharing my prized tomatoes with a rodent !
I'm surprised he is getting around the electric fence, although they have a nice coat of fur to insulate him, unless he hits it with his nose, probably not going to work, and as far as baiting him, some like one thing and others like something else, my buddy used to eat fresh dinner rolls from the bakery, others I've tried to feed, did not like any bread or other things I've tried, you may have to work on that. They are very smart critters, wary of their surroundings at all times. If you can wait him out, or find his hole, watch that, many times they sit just inside it and pop their heads up, then time to shoot, if you get him, fill that hole in, others will use it if left open.
