What you say is true, Palladin, a child's life is not always why the FBI enters a case. That they did find reason to involve the bureau in this particular case a short time after Elizabeth's disappearance - and with all the woes this country has undergone and may still face -there has to be more to it.
could all this case be about a setup insurance scam....???? did Ed need money badly and did he arrange to have a little breakin....gee..sure convenient to have the garage door open and the alarm off.....did the breakin go badly....????
of course if that happened that way....no way would Ed want it to be known that he was involved....could he have arranged to have Ricci quietly killed... a man or relatively young years...???
far fetched??? sure.....so is the so simple idea that Ricci just came , took a willing teenager out, in front of a little sister who was so worried she came quietly to her parents bedroom up to two hours later....oh, and that gun.....