"GMA" has a sneak peek at the new episode, where a mother of four vanishes after work in 2010 in a case that also involves her teenage stepdaughter.

ABC’s “20/20” returns with a new two-hour true-crime episode titled “I Have Killed For You,” revisiting the decade-long investigation into the disappearance and murder of Bonnie Woodward ...

ABC’s “20/20” returns with a new two-hour true-crime episode titled “I Have Killed For You,” revisiting the decade-long investigation into the disappearance and murder of Bonnie Woodward ...

Interviews with family members and law enforcement investigating the case of Nathan Carman, who died while awaiting trial in his mother's death, will air in a new episode of ABC's "20/20" on ...

The 20/20 episode explores the evidence of the case, speaking with the Dane County Sheriff's Office detectives who lead the investigation. Correspondent Ryan Smith also speaks with Barbi Townsend, ...

"GMA" has a sneak peek at the new episode, where a mother of four vanishes after work in 2010 in a case that also involves her teenage stepdaughter.

Bonnie Woodward's case is the subject of a new “20/20” episode on ABC that will air Friday.