Al B. Sure! calls for an investigation into the death of his ex Kim Porterthe dated Sean “Diddy” Combs from 1994 to 2007 with interruptions.

The singer, whose real name is Albert Joseph Brown, explained his thoughts on Porter’s death in a series of Instagram posts shared on Monday, September 23. Porter died in November 2018 at the age of 47. Her cause of death was ultimately attributed to lobar pneumonia, but Brown, 56, said he believes she was murdered.

“I am writing this post to formally request an investigation into an entire group of individuals who worked in or around Ms. Kimberly Porter’s residence, including the publicists who assisted in the writing of this post,” he wrote on Monday. “It has come to my attention that these individuals were also instructed to steal her computer and mobile devices that contained her ‘original notes to her book.’ Original notes are different from the fabricated nonsense – and offensive pages circulated via Amazon depicting explicit sexual acts with me that NEVER took place and were edited and added after Ms. Porter’s tragic murder.”

Brown’s post includes screenshots from a recently published book titled Kim’s Lost Words: A Journey for Justice from the Other Side. Written by Jamal MillwoodThe book reportedly contains Porter’s diary entries from when she was dating 54-year-old Diddy.

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According to Brown, the publication of the book raises “significantly more questions” about Porter’s death.

“It is obvious that her potential to expose the reality of her personal abuses, drug use, #sextrafficking and #humantrafficking she was privy to, similar to the courageous actions of (Diddy’s ex-)wife… Cassie Venturaposed a threat to those who profit from such heinous activities,” Brown claimed. “In short, Kimberly was supposedly taken from us because she was out to accomplish what Mrs. Cassie Ventura did by lighting the Bon Fire that brings us here today, with the avalanche that brought (Satan) into her chambers.”

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Brown was apparently referring to Cassie’s November 2023 lawsuit against her ex-boyfriend Diddy, whom she accused of rape and physical abuse. The 38-year-old singer dated the music mogul on and off from 2007 to 2018. A day after she filed the lawsuit, she and Diddy settled out of court. Diddy denied her allegations, but in May a 2016 video resurfaced showing him attacking Cassie in a hotel. He later publicly apologized for his actions in the clip.

Brown dated Porter in the late 1980s and early 1990s and the couple have a son together, Quincy, 33. Porter and Diddy later had a son, Christian “King” Combs, 26, and twin daughters Jessie and D’Lila, 17. In an interview with Vanity FairDiddy called Porter the love of his life.

In his Instagram posts, Brown further said that he remained close to Porter until her death.

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“Kim and I spoke up until a few days before her death, she was in good health and we are in such a great ‘friend circle’ where we reminisce about old times and celebrate our son’s accomplishments,” he wrote. “We must continue to fight for justice and ensure that all individuals who conspired against her are held accountable and prosecuted to the fullest extent of the law.”

Diddy was arrested on September 16 and later charged with sex trafficking, conspiracy to commit organized crime and transportation for the purpose of prostitution. He pleaded not guilty to all charges, and his attorney Marc Agnifilo says his client is “innocent.”