Daniel Penny, a white former US marine who killed a homeless black man by placing him in a chokehold on a New York City subway, was charged with manslaughter on Friday.
Witnesses said Jordan Neely, who was known for his impersonations of Michael Jackson, was speaking loudly about being hungry and thirsty.
Mr Penny had approached Mr Neely and placed him in a chokehold that lasted for 15 minutes, one witness said.
Video footage showed two other men helping Mr Penny to restrain Mr Neely. The identities of the two men have not been revealed, and it is not clear if they will face similar charges.
Mr Neely's death was ruled as a homicide as a result of compression of the neck.
“Jordan Neely should still be alive today,” Manhattan District Attorney Alvin Bragg said.
Mr Penny, from Long Island, surrendered to authorities in New York's Manhattan on Friday.
A lawyer for Mr Penny said he had turned himself in “voluntarily and with the sort of dignity and integrity that is characteristic of his history of service to this grateful nation”.
A judge authorised Mr Penny’s release on $100,000 bond and ordered him to surrender his passport and not to leave New York without approval.
Prosecutors said they were seeking a grand jury indictment.
Mr Penny is due back in court on July 17.
If convicted, he could face up to 15 years in prison.
Mr Neely's death sparked debate over the city's perceived failure to support homeless people struggling with mental health problems.
Friends of Mr Neely said he had a history of mental illness, and police said he had been arrested before. His mother was murdered, by strangulation, when he was 14 years old.
Mayor Eric Adams said Mr Neely's death should never have happened.
“My heart goes out to Jordan’s family, who are suffering great pain and uncertainty about the circumstances of his death,” Mr Adams said.
The New York City mayor was criticised last week over his initial response to Mr Neely's death, in which he said: “We cannot just blankly say what a passenger should or should not do in a situation like that.”
Agencies contributed to this report
The President's Cake
Director: Hasan Hadi
Starring: Baneen Ahmad Nayyef, Waheed Thabet Khreibat, Sajad Mohamad Qasem
Rating: 4/5
Top tips
Create and maintain a strong bond between yourself and your child, through sensitivity, responsiveness, touch, talk and play. “The bond you have with your kids is the blueprint for the relationships they will have later on in life,” says Dr Sarah Rasmi, a psychologist.
Set a good example. Practise what you preach, so if you want to raise kind children, they need to see you being kind and hear you explaining to them what kindness is. So, “narrate your behaviour”.
Praise the positive rather than focusing on the negative. Catch them when they’re being good and acknowledge it.
Show empathy towards your child’s needs as well as your own. Take care of yourself so that you can be calm, loving and respectful, rather than angry and frustrated.
Be open to communication, goal-setting and problem-solving, says Dr Thoraiya Kanafani. “It is important to recognise that there is a fine line between positive parenting and becoming parents who overanalyse their children and provide more emotional context than what is in the child’s emotional development to understand.”
Various Artists
Habibi Funk: An Eclectic Selection Of Music From The Arab World (Habibi Funk)
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UAE currency: the story behind the money in your pockets
PROFILE OF HALAN
Started: November 2017
Founders: Mounir Nakhla, Ahmed Mohsen and Mohamed Aboulnaga
Based: Cairo, Egypt
Sector: transport and logistics
Size: 150 employees
Investment: approximately $8 million
Investors include: Singapore’s Battery Road Digital Holdings, Egypt’s Algebra Ventures, Uber co-founder and former CTO Oscar Salazar