Marissa received a fatal injury in the bathroom. Hill carried the lifeless, dead or dying Marissa in her arms out of the bathroom, and Hill's stepfather, Patrick McKay, called 911. Hill can be heard on the recording of the call urging her stepfather to cancel the ambulance and hang up the phone. When police and ambulance responded anyway, Hill and others lied to get them to leave.
Hill, her sister Amanda Dipota and Whalen wrapped Marissa's body in a blanket and garbage bag and later that night drove 2 ½ hours to the Six Nations area, and buried her in a dark, secluded spot in the woods.
The trio returned Aug. 3 and dug up the child's remains, then removed the bag and blanket – which they later burned -- and reburied her.
On Oct. 8, 2011, Whalen reported Marissa missing to the police.