Can salmonella live on cooked chicken and does it cause a foul odor on the chicken?

My daughter ate a chicken leg from a Bojangles in NC and before she ate the 2nd one she told me her chicken taste funny. I took the chicken from her and smelled and tasted it. It was the most horrible thing I ever experienced. It smelled like road kill on a hot summer day. About 4 hours later she had developed bloody stool and stomach pains. Is it another bacteria that could have made her sick or could it be salmonella. I thought if the chicken was cooked that it kills bacteria.