Can anyone help ID this unknown bacteria in Microbiology?

My best guess would be Salmonella typhimurium. As a gram negative rod, if it grew on Hektoenteric agar and produced black colonies, it should be S. typhimurium. Also, it is H2S positive and some strains are resistant to triple sulfa. I dont know about some of the other tests since they are usually used for other things. Like the catalase test is usually used to distinguish Staph from other gram positive cocci.