Authorities have identified the suspects in crimes targeting two area Walmart stores.   Police say the suspects are 36-year old Joshua Humphries of Sylvan Springs and 24-year old Micah Curry.  Detectives say Humphries walked into the Hueytown store Thursday, and announced a robbery, claiming he had a bomb.  Humphries walked away empty handed, police said.  Investigators say the he did the same thing at the Bessemer Walmart a short time later, this time accompanied by Curry.  Police say the pair were given $538 from a bank located inside the store.   Both men are being held at the Bessemer jail, facing robbery charges.