Not doubting you or your brother, but this seems odd to me. If they found massive amounts of blood in the mom's apartment, shouldn't they have been arrested and in jail, instead of putting them up in a motel? Massive amounts says to me someone died there. Unless both the mother and the boyfriend have solid alibis, they would be the #1 suspects, and that kind of evidence would be good enough for an arrest warrant, IMO. Sounds like they have them in protective custody and LE doesn't do that with suspects. With the FBI watching the apt., sounds like they think someone else is involved, rather than the mom and b/f.