>> sergeant john webal got the call and arrived at the house with two other officers. his body camera was rolling as alex led them to the bathroom. >> as we entered the master bathroom, emily was laying on the floor, face-up, and she had a bluish tint to her. >> how long has she been in here? >> i don't know, she was taking a bath. >> could you tell whether she was still alive? >> i checked right away for a pulse and breathing. didn't feel any. so i instantly started cpr. >> how long? >> i don't know. she's cold. >> blood? >> no blood. no blood anywhere. she did have a big bruise on her forehead. >> what was around? anything? >> the bathtub was full of water. and there were oil droplets on top of the water, like bath oil. there's music playing from an ipad on the sink area.