Typically, only male caretakers have the brute strength to squeeze an infant head between their bicep and forearm, and kill the baby.
Dad is identified as LAWRENCE TOM.
http://mynorthwest.com/11/2140608/Father-admits-killing-crying-baby-in-fit-of-frustration
Father admits killing crying baby in fit of frustration
BY TIM HAECK on November 29, 2012 @ 10:47 am (Updated: 11:20 am - 11/29/12 )
A member of the Lummi Tribe admits he killed his 6-month-old daughter in a fit of frustration, pleading guilty to Voluntary Manslaughter.
In a plea agreement this week in U.S. District Court in Seattle, Lawrence Tom, 23, told a judge he became frustrated with the baby's crying while home alone with the child and her 18-month-old sister last May. He squeezed the infant's head between his bicep and foreman, causing a traumatic brain injury.
The U.S. Attorney says the baby died from skull fractures and bleeding in the brain.
Both the prosecutor and the defense are recommending a maximum ten years in prison when Tom is sentenced March 8, 2013 by Judge Marsha Pechman.