Al B. Sure! calls for an investigation into the death of his ex Kim Porterthat dated Sean “Diddy” Kammen occasionally from 1994 to 2007.

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

“I am writing to formally request an investigation into a group of individuals who worked at or around Ms. Kimberly Porter’s residence, including the publicists who assisted in the preparation of this,” he wrote Monday. “It has come to my attention that these individuals were also directed to steal her computer and mobile devices, which contained her ‘original book notes.’ Original notes are distinct from the fabricated bullshit and offensive pages circulating through Amazon depicting graphic sexual acts involving me that NEVER occurred 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 to Justice from the Other Side. Written by Jamal MillwoodThe book is said to contain Porter’s diary entries from her relationship with Diddy, 54.

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

“It is clear that her potential to expose the reality of her personal abuses, the drugging, the #SexTrafficking and #HumanTrafficking she witnessed is comparable to the brave actions of (Diddy’s ex) Mrs. Cassie Ventura“posed a threat to those who profited from such heinous activities,” Brown alleged. “In short, Kimberly would have been taken from us because she was on her way to accomplishing what Mrs. Cassie Ventura did by lighting the bonfire that brings us here today with the avalanche that brought (Satan) to their 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 singer, 38, was in an on-again, off-again relationship with the music mogul from 2007 to 2018. She and Diddy settled out of court a day after she filed the lawsuit. Diddy has denied the allegations, but in May, a 2016 video surfaced of him attacking Cassie in a hotel. He later publicly apologized for his actions in the clip.

Brown dated Porter in the late ’80s and early ’90s, and the couple have a son, Quincy, 33. Porter and Diddy later welcomed son Christian “King” Combs, 26, and twin daughters Jessie and D’Lila, 17. In a 2021 interview with Vanity FairDiddy called Porter the love of his life.

Brown said in his Instagram posts that he was close to Porter until her death.

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“Kim and I spoke up until a few days before her passing, she was in good health and we are in a wonderful ‘friends space’ reminiscing and celebrating the news of our son’s accomplishments,” he wrote. “We must continue to advocate for justice and ensure that anyone who conspired against her is held accountable and prosecuted to the highest level of the law.”

Diddy was arrested on September 16 and later charged with sex trafficking, conspiracy to commit extortion and transportation to engage in prostitution. He has pleaded not guilty to all charges and his attorney Marc Agnifilo says his client is “innocent.”