Ok this hit me. Hard. Harder than Beth

Last night I was doing my usual, watching TWD like I normally do on Sunday nights...
The group were splitting up to drive away the 10,000's of walkers that were attracted by the truck horn.

Glenn and Nicholas left the group to help. Bad move

They were surrounded by walkers and Nicholas freaked out so he killed himself (last part for more info) and grabbed onto Glenn as he fell into the crowd of walkers

In the scene you seen an intestine being ripped out of a body which made me question if he was really dead? The intestines were being ripped out of Glenn's chest area which is no where near the place your intestines should be. I think he went under the dumpster. Because the comics said so.