Bobby Brown is said to be consumed by guilt following the death of Bobbi Kristina Brown.
The tragic 22-year-old passed away at a local hospice last on 26 July, six months after she was found face down and unresponsive in a bathtub at her Georgia home.
After being in a medically-induced coma for five months, the family released a statement that Bobbi Kristina had been moved to Peachtree Christian Hospice in Atlanta. On July 26 Bobbi Kristina died at the age of 22.
Following an invite-only funeral St James' United Methodist church on August 3 attended by close friends and family, Bobbi Kristina was laid to rest today (August 5) beside her mother Whitney Houston.
A visibly distraught Brown broke down after the service as he headed for the sombre reception.
However, the grieving father was absent at her burial as he struggles to come to terms with her passing.
The 46-year-old is said to be blaming himself for her death, reportedly telling friends he feels he didn't do enough to prevent his daughter's decline and to protect her.
In an interview with Daily Mail Online a close family friend explained: "Bobby has so much guilt that it is eating him up every day. He told me he should have insisted Krissy get help for her drug addiction and he should have forced Nick Gordon to move out of her townhouse and leave her alone — legally, if necessary."
"Bobby says he was her father no matter what age she was and he should have fought her or anyone else who stopped her from saving her from herself," said the friend.
It has been alleged that Bobbi Kristina grew up in a volatile environment and was exposed to drug-taking and domestic abuse from an early age. Bobbi Kristina herself is reported to have developed problems with substance abuse.
The singer reportedly regrets not getting help for his daughter or protecting her interests.
"Bobby told me 'I should have gone to court to get a judge to make Bobbi Kristina go to rehab and then become her guardian — like Britney Spears' father did to save her,' " the friend said.
In 2008 Jamie Spears was granted personal and financial conservatorship of his daughter and protection from Sam Lufti, her former manager, after what appeared to be a public cmeltdown when the Oops I did it again singer publicly shaved her head and assaulted the paparazzi.
The conservatorship is still in place today and Britney is said to be happy in her life.
Bobby Brown, recently became a father to a baby girl with his wife Alicia Etheridge, and is suffering both the indescribable loss of losing a daughter, at the same time as welcoming a new daughter into the world.
The source explained: "Bobby's life right now is bittersweet because while Bobbi Kristina was in hospice his wife delivered their baby girl, Bodhi, on July 9."