Foul play suspected in Bobbi Kristina Brown case

New information about Bobbi Kristina Brown reveal she may have been dealing with numerous personal problems leading up to her hospitalization.

The daughter of Whitney Houston and Bobby Brown was taken to a hospital last week after she was found unresponsive in a bathtub at her home in Atlanta on January 31.

Doctors placed her in a medically induced coma and a statement from the Houston family this week said she was fighting for her life.

Law enforcement sources told TMZ she was already in trouble with the law before the incident - and police believe foul play may have been involved.

An arrest warrant was issued for the 21-year-old just days before she was found unconscious and law enforcement sources say she had injuries that lead them to believe foul play may be involved.

Brown was previously hospitalized for "stress and anxiety" shortly after her mom's death. Authorities searched the home after she was taken to the hospital but didn't find any drugs.

They're also looking into a possible altercation more than an hour before she was found. The main suspect is her boyfriend.

Details of Bobbi's condition are still scarce but she remains on life support.