Officials with the St. Mary Parish Sheriff's Office in southwest Louisiana issued the warning last week after making arrests in connection to the new drug. It's called gray death and is a lethal combination of "some of the most deadly opioids including heroin, fentanyl and various fentanyl analogues," officials said on Facebook. According to the Sheriff's Office, the new super drug began to surface in the South, first in Alabama and Georgia. Investigators said a "minuscule amount of this drug" can kill. Sheriff's Office investigators released photos of what gray death looks like after suspects were taken into custody with...