Dejah Hunt, 3, died from blunt force trauma, the Clark County coroner reported, ruling her death a homicide, according to KVVU-TV.
The little girl was found on Aug. 23 after her mother, Aisha Thomas, 29, made a 911 call to report her missing. Thomas was arrested the following day after police said discrepancies in Thomas' story caused them to search her home for a second time, where they discovered the toddler's body in the closet, the Las Vegas Review-Journal reported.
Thomas is jailed without bail and her three other children, all younger than 3, are in the care of Clark County Child Protective Services.
A GoFundMe page was started for the family and has raised more than $2,100 of its $5,000 goal.