It happened on the 2400 block of Spring Rain Drive around 6:15 a.m.
When deputies arrived, they found a 40-year-old man dead from a gunshot wound.
Sergeant Jason Brown said it was being looked at as a possible self-defense shooting.
Investigators interviewed the victim's step-daughter, in her 20s, and will present the case to prosecutors to consider whether charges will be filed.
It is unknown what led to the shooting.