With the death of ex-wife Whitney Houston, and his daughter Bobbi Kristina in the hospital, sources close to Bobby Brown sayhe is on his way to Los Angeles be with his daughter and skipping a concert to do so.

According to our sources, Bobbi Kristina has not been alone since her mother passed — she’s had Bobby’s family by her side the entire time.

New Edition has a concert tonight in Nashville, but we’re told Bobby will skip the show so he can get to Los Angeles to be with Bobbi Kristina. Brown was spotted at the airport in Nashville with an entourage of people by his side.

In related news, The autopsy of Whitney Houston is complete, but the results will be deferred pending a toxicology report.

The autopsy of Whitney Houston revealed she did have water in her lungs when she died, but the medical examiner needs to determine exactly how much before they can rule whether she died as a result of drowning.

Authorities believe Houston may have fallen asleep or lapsed into unconsciousness in the bathtub and drowned.

But according to our sources, authorities cannot yet determine whether Houston died before she was submerged in the water or after. We’re told there is still a possibility Houston was dead before she went under the water.

Toxicology results will be back in 4-6 weeks.

Although the cause of death is unknown, it is increasingly looking like Whitney may have fallen asleep or lapsed into unconsciousness in the bathtub and drowned.

Whitney had been drinking the night before and authorities believe a combination of Xanax and alcohol could have fatally sedated her — although our sources say it is simply too early to draw any firm conclusions.