Malcolm X's daughter Malikah Shabazz has been found dead just days after two men were exonerated for his murder after spending decades in prison.
The police said the body of 56-year-old Malikah was discovered inside her Brooklyn, New York home on Monday afternoon.
According to The Mirror, Malikah's 23-year-old daughter is said to have made the tragic discovery, and the New York Police Department added that the death does not appear to be suspicious.
Police officials told NBC New York that Ms Shabazz was found unconscious and unresponsive just before 4.30pm local time.
Malikah and her twin sister Malaak never met their 39-year-old father, as they were born seven months after the Black civil rights leader was assassinated in 1965.
He was shot 16 times in front of a crowd of 400 people at the Audubon Ballroom in Harlem, including his pregnant wife, Dr Betty Shabazz, and three of their daughters.
The daughter of fellow civil rights icon Martin Luther King Jr., Bernice King, sent her condolences via social media following Ms Shabazz's death.
Ms King said on Twitter: "I’m deeply saddened by the death of Malikah Shabazz. My heart goes out to her family, the descendants of Dr. Betty Shabazz and Malcolm X.
"Dr. Shabazz was pregnant with Malikah and her twin sister, Malaak, when Brother Malcolm was assassinated. Be at peace, Malikah."
A coroner carried out an investigation at the Ms Shabazz's home and said the death was not deemed suspicious.
Her cause of death has not yet been established.
Ms Shabazz had a number of brushes with the law over the years.
In 2011, she pleaded guilty to stealing the identity of an elderly family friend in North Carolina and racking up more than $55,000 in credit card charges.
Her death comes days after two men were exonerated in the 1965 assassination of her father.
Manhattan District Attorney Cyrus Vance apologised for what he called "violations of the law and the public trust".
Last Thursday, applause broke out in the courtroom as New York State Supreme Court Justice Ellen Biben vacated the convictions against Muhammad Aziz, 83, and Khalil Islam, who died in 2009.
Both were released from prison on parole in the 1980s.
Mr Aziz told the court that his wrongful conviction had stemmed from "a process that was corrupt to its core, one that is all too familiar to Black people in 2021," and said he hoped the system would take "responsibility for the immeasurable harm it caused me."
Two of Mr Islam's sons who were also present in court, Ameen and Shahid Johnson, told reporters outside the courthouse that they felt "bittersweet" about the exoneration because it could not replace everything their family had lost.
Investigators withheld from both defense and prosecution "dozens and dozens" of documents from the New York Police Department and the US Federal Bureau of Investigation, including reports that implicated other suspects, according to Mr Vance.
The conviction of a third man for murdering Malcolm X still stands.
Malcolm X rose to prominence as the national spokesman of the Nation of Islam, an African-American Muslim group that espoused Black separatism.
He spent over a decade with the group before becoming disillusioned, publicly breaking with it in 1964 and moderating some of his earlier views on racial separation.
He was shot dead at New York City's Audubon Ballroom while preparing to deliver a speech. All three of the men convicted were members of the Nation of Islam.
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