definately go look for the deer. stinks that you jumped him, but if you stopped following him as soon as he jumped, he wouldnt have gone far. he probably wont go far off of a trail, so try to find the trail he was on and search that trail first. i have shot several deer in the gut over my time hunting, and i recovered all but one. i found all of them within 100 yards of where i shot them. i hadnt pushed them at all, so that obviously helped. it will make a difference if you hit a lung or not as well, which might be hard to know right now. i shot a doe last year that i thought was a perfect shot, got down and smelled the arrow, smelled like gut shot, so i left it over night. turned out i hit one lung, but the quartering-to angle made it exit the lower belly through the intestines. but i still found her less than 50 yards from my stand. all of the deer i have shot and found were laying right on the trail they were traveling on, or just off of it a few feet. they headed for cover, like the nearest woods, or circled back to wear they had come from when i shot them. dont be surprised if there is no blood trail, the intestines usually push out the exit hole and plug it. but definately score the main trails in the area, you have a good chance at finding him if he didnt get pushed too much, considering terrain of course. a more open woods area will be much easier searching than a marsh. good luck.