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

According to a search warrant affidavit obtained by NBC affiliate KPNX of Phoenix, Brady Kiser said he was distracted by his infant son when the toddler wandered outside. Brady Kiser told officials he discovered his son unconscious in the pool and then called 911.

Earlier this month, it was reported that Brady Kiser could face abuse charges over his son Trigg's death. The child died six days after he was hospitalized for a drowning accident