Blood Brother

What happens if, after being given up for adoption in childhood, you reestablish contact with your biological family -- only to discover that your newfound brother is a killer?

Anne Bird, the sister of Scott Peterson, knows firsthand.

Soon after her birth in 1965, Anne was given up for adoption by her mother, Jackie Latham. Welcomed into the well-adjusted Grady family, she lived a happy life. Then, in the late 1990s, she came back into contact with her mother, now Jackie Peterson, and her family -- including Jackie's son Scott Peterson and his wife, Laci. Anne was welcomed into the family, and over the next several years she grew close to Scott and especially Laci. Together they shared holidays, family reunions, and even a trip to Disneyland. Anne and Laci became pregnant at roughly the same time, and the two became confidantes.

Then, on Christmas Eve 2002, Laci Peterson went missing -- and the happy façade of the Peterson family slowly began...