James Huddleston is considered dangerous and has been added to the Tennessee Bureau of Investigation's Most Wanted List.
Huddleston, 34, allegedly shot Phillip Pero, 35, Sunday at a home in Spring Hill and was seen leaving the area after the shooting. A warrant has been issued for criminal homicide.
Huddleston may be traveling with a small child and his girlfriend, 22-year-old Victoria Phillips, in a red 1997 Cadillac Seville that has a faded hood and aftermarket wheels.
Spring Hill Police continues investigating the fatal shooting and cautions anyone who spots the dangerous suspect to call 9-1-1 and do not approach him.