Katherine Rutan, Logan's mother, was convicted in October 2007 of first-degree murder and is serving a life sentence, despite the fact that a body has never been found.
Rutan denied killing her son. She said Logan went away with a relative and she never saw him again.
Les Morton, former Woodward County sheriff, said in a 2008 interview that Rutan told 15 different stories of what happened to Logan. The children had become an issue for Rutan's former boyfriend who wanted them out of his home, Morton said.
Justin Daggett, Logan's younger brother, testified during his mother's trial that she carried Logan from a house to her car and that Logan was pale, slumped forward and not moving.
He also told interviewers that his mother placed tape over Logan's eyes and mouth before driving them to an abandoned house west of Fort Supply Lake. Justin said his mother carried Logan into a house and then drove off without him.
Justin Daggett was taken into custody by the Department of Human Services after his brother was determined to be missing.
Authorities have searched for Tucker's body over the years, including a search of the Woodward landfill for several months in 2006.YouTube video: Woodward News reporter on the scene