COULD HE BE GUILTY ?- Bobbi Kristina Foul Play Criminal Investigation Underway Boyfriend Targeted

There is an active criminal investigation underway in the Bobbi Kristina case ... it centers on possible foul play and the target is her boyfriend ... TMZ has learned.

Bobbi Kristina had certain injuries that have piqued their interest. We do not know the nature of the injuries. Multiple sources tell TMZ there is a history of violence between Bobbi Kristina and boyfriend Nick Gordon.
We're told police are looking into a possible altercation more than an hour before Bobbi Kristina was found submerged in a bathtub.