Stepfathers kill their stepchildren with alarming frequency. See the story below...it's really recent.
From:
http://www.wbay.com/Global/story.asp?S=4664039
Stepfather Gets 25 Years for Beating Toddler to Death
March 22, 2006, 05:36 PM CST
The Two Rivers man who beat his two-year-old stepdaughter to death was sentenced to 25 years in prison Tuesday.
Last May, Michael Kowach punched and stomped on the girl because she wouldn't clean her room.
A Manitowoc County judge also sentenced Kowach to ten years of extended supervision when he gets out of prison.
Once he's released, he can't have any contact with the girl's mother, or any unsupervised contact with children under 18, and must visit his stepdaughter's grave once a year.
Oh, no doubt.
But not because she failed to call him "Daddy".