Stephen Gayles, 26, was booked in the Las Vegas City Jail on one count of murder and two counts of child abuse, police stated.
Officers at first reacted about 6:30 p.m. Dec. 4 to a home in the 900 block of Appaloosa Hills, near Centennial Parkway and Fifth Street, where it was reported that a child was unconscious, police stated.
The kid, who was in the care of Gayles at the time of the occurrence, later died at University Medical Center, police said.
Additional details on the case, such as how investigators developed Gayles as a suspect, how the boy passed away or exactly what was his relationship to the suspect, was not immediately readily available.
Gayles was detained today in the southwest valley, authorities said.