Sources: Bobbi Kristina to be taken of life support. Family say goodbyes

Bobbi Kristina Brown remains on life support after being found unconscious in a bathtub – were drugs involved?

It wasn't the news that Bobbi Kristina Brown's family wanted to hear. 

On Wednesday, four days after the 21-year-old was found unresponsive in her home, a doctor told her family that nothing more could be done. "Everyone is coming to the hospital to say goodbye," says a family member. 

The news was especially devastating to her father, Bobby Brown. "Bobby has been crying nonstop since yesterday," says the source. "We are grieving." 

A second family member went by the hospital overnight to say goodbye – and admits that the devastating news is hard to believe. 

"If you saw her, you'd think she was just sleeping," says the source. 

But even with the bleakest prognosis, the family is still clinging to some hope. "It's sinking in that this is it," says the second family member, "but we're all still praying that God will intervene and heal her body." 

(TMZ) - There's nothing more doctors can do for Bobbi Kristina - and they've told Bobby Brown it's time to withdraw life support, TMZ has learned.

Family sources tell TMZ the decision is now in Brown's hands - but according to TMZ, he's refusing to make the painful choice today, and instead wants to wait until after the weekend.

The timing could not have been worse.  Today is Bobby Brown's birthday.

TMZ reports Brown has been hopeful his daughter can beat the odds because someone in his extended family battled out of a coma after 8 days.

Bobbi Kristina was moved to Emory University Hospital Tuesday because the facility has a world class neurological department, but it appears doctors have determined there's no hope.

Bobby