Police are investigating Bobbi Kristina Brown's boyfriend Nick Gordon in her drowning

Police are reportedly investigating Bobbi Kristina Brown's boyfriend Nick Gordon for his alleged involvement in her drowning.

Bobbi, 21, is on life support since last Saturday, after being found unconscious in a bathtub at her home in Georgia. Gordon is apparently at the centre of a foul play criminal investigation.

Law enforcement sources recently revealed that Bobbi Kristina "had certain injuries that have piqued their interest", reported TMZ. The police are allegedly investigating Gordon to see if he had something to do with these injuries.

Bobbi's friend Max Lomas, who found her face down in the bathtub, reportedly claimed that Gordon cleaned up blood stains before the authorities arrived at Brown's house.

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