There are a few long-standing cases that involve a child missing with a parent that are not on the For the Lost site. In many circumstances, I will label such a family abduction. What makes them ruled out?
In some cases, insufficent evidence exists to determine whether there was really an abduction. El-Jahid Allah, for example, was last seen with his non-custodial father, but I can determine nothing besides that. For all I know, they were homicide victims. So unless a warrant is issued for his arrest, I will leave it off. Maribel Oquendo-Carrerro is listed in a few places as abducted by her father, but on NCMEC she’s just listed as endangered with no message about the dad. Once again, unless there is proof provided, I can’t put it up. In Kayla Rosa’s case, I can’t even figure out what parent she was with, or if they have since been found. (Sites have listed both her mother and her father as the parent she was last seen with.)
In some others, I doubt it was a family abduction at all. James and Ptah Diamond, for example. Ptah was visiting his father in Arizona at the time; he normally resided in Cleveland. Researching the case online one day, I came across a post by James’ mother that detailed suspicious circumstances in the case. It’s possible both will turn up, but I doubt it. I’d like to be proven wrong. (The post was on a web site that has since vanished and I’ve never found another copy, however I remember most of the details.)
Some past cases I left off the site because I believed the parent abducted the kid to kill them. The Porter kids, for example. I was proven right. I wish I wasn’t, but in that case they did not qualify.
I added a part to the FAQ section in our site about cases like that. I mentioned that in the unlikely event that the “abductor” was actually along with their child a victim of homicide, I would resolve the case with a note to that effect if found and merely remove with the note if suspicious circumstances came up. I named a specific case there (Paul and Sarah Skiba) but when I wrote it I was actually thinking of a particular case. It’s since been resolved and I feel free to name it now. That case was the one of Joseph Kennedy. I treated it as a family abduction and the only evidence to the contrary was the mother’s family insisting foul play was possible. They created a sliver of doubt in my mind, and I added the note to that effect. Of course, it was an abduction, Joseph and his mother were both fine, and they were found in Mexico. I’m still keeping it up there, though. I could stil be proven wrong.