The McStay family mystery began unraveling last week
with the discovery of four skeletons in two shallow graves in the desert outside the California city of Victorville.
The San Diego, Calif., family — consisting of 42-year-old Joseph McStay and his 45-year-old wife Summer and their children, Gianni, 4, and Joseph Jr., 3, — had been missing since February 2010.
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Since their disappearance, there has been a substantial amount of speculation as to their whereabouts.
Former North Carolina radio host and author Rick Baker, who led a worldwide search for the missing family, interviewed McStay family members and friends and penned a book about the case titled: "No Goodbyes: The Mysterious Disappearance of the McStay Family."
"I thought I would meet them one day," Baker told ABC News
. "I've traveled around the world to what I thought were verified sightings. I thought they were part of my family, and I grieved when I heard. Never in my wildest dreams or nightmares could I have supposed that the entire my family would be dead."
A video obtained by police showed a family similar to the McStays in Mexico four days after they disappeared, ABC News reported. However, police said they weren't able to confirm the identities of the family in the video.
Additional sightings of McStay family reportedly occurred in Belize, Mexico, Haiti, the Dominican Republic and other countries.
Baker said that he has asked Amazon to stop selling his book, which was released in February, due to the family's discovery last week.
"My conscience won't allow me to sell it – the purpose was for awareness," Baker told ABC News. "Now that we know what happened, I can't sell one more book. I thought they were part of my family, and I grieved when I heard. The people who did this, the death penalty is too good for them. They should be tortured to death."
Despite rumors that the McStay family crossed the border into Mexico, Joseph McStay's father Patrick disputed such claims. He said his son would not have taken his family across the border.
"He would not have left without calling me or his mother," McStay said. "My son didn't walk away. They didn't walk into Mexico. They would never do that."
"The love for my son and my grandchildren and my daughter in law — that's what kept me going," McStay told the Los Angeles Times on Thursday
. "I'm not going to break down and cry. I'll do that later. The anger keeps me going."
"That boy, Joey, he's my oldest son. He wasn't only my son. He was my best damn friend," McStay added.
The skeletal remains were discovered by an off-road motorcyclist last Monday, with the parents in one plot and their two children in another. The case has been ruled a homicide by police. They are no suspects as of yet.
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