The ex-boyfriend who 'murdered' Morgan Freeman's step-granddaughter can be seen in a new photograph obtained by Mirror Celeb.

E'Dena Hines was allegedly killed by her former partner, Lamar Davenport, as he tried to perform an 'exorcism' on her in the middle of a New York street, a witness has claimed.

The 30-year-old rapper has now been charged in connection with the fatal stabbing and police have confirmed they were in a relationship.

George Hudacko, who saw the actress stabbed, said her killer was screaming: "Get out, devils! I cast you out, devils! In the name of Jesus Christ, I cast you out!" as he carried the attack.

(Image: Instagram)

The 65 year old watched the attack from his window calling 911 after hearing the victim scream.

"The girl was making a lot of noise, screaming," Mr Hudacko said.

"I saw something sparkly going up and down. ... I called 911, I was begging them to come."

Hines, whose grandmother, Jeanette Adair Bradshaw, was the Batman star's first wife, was stabbed shortly before 3am yesterday in Harlem.

Witnesses claim the 33-year-old's boyfriend repeatedly stabbed her even after she stopped showing any signs of life.

Within hours of the attack, Freeman issued a statement saying: "The world will never know her artistry in talent, and how much she had to offer.

"Her friends and family were fortunate enough to have known what she meant as a person. Her star will continue to shine bright in our hearts, thoughts and prayers. May she rest in peace."

Although Hines and Freeman, 78, were not directly related by blood, their bond was so close she would sometimes join him on the red carpet at movie premieres and award shows.

Her ex-boyfriend was arrested and taken to Columbia Presbyterian Hospital for a psychiatric evaluation, police later said.