Trigg Kiser died on May 18 after being pulled from a backyard pool in Chandler, Arizona, six days earlier, police previously told USA TODAY.

An attorney for Brady Kiser said he is "grateful to law enforcement and the county attorney for conducting a thorough investigation."

Emilie Kiser's husband, Brady, was home at the time of his 3-year-old son Trigg's fatal drowning accident in Arizona. Two months later, the Maricopa County Attorney's Office says he will not be charged with child abuse,