A man angry about nude photos of his sister being shown around was fatally stabbed in a confrontation in downtown Minneapolis with the 47-year-old man accused of sharing the images, authorities said.

Police on Thursday said that the victim died on Wednesday, the same day that second-degree attempted murder charges were filed against Bruce R. Fry, 47, of Minneapolis, in Hennepin County District Court. Fry appeared in court Thursday afternoon on an upgraded charge of second-degree murder.

Authorities have yet to identify the victim, who was declared brain dead Monday and put on life support ahead of organ donation.

Fry told police he had just finished a sentence for murder in another state, the criminal complaint read, but authorities have yet to substantiate that claim.

His mother, Willa Henderson, said Fry was convicted of murder in Chicago roughly 20 years ago. He and another man were “wrestling over a gun” at the time, she said.

On Friday, a 911 call about a man who appeared dead brought police to a building in the 1100 block of 8th Street S., according to the criminal complaint.

Apartment surveillance video showed the man buzzing a number at the building’s front door. Fry came to the door and had words with the man through the locked glass door. The man retreated and Fry pursued him as they continued their exchange, prompting the man to push Fry away.

Fry stabbed the man with a small knife, wounding him in the head and upper torso. As the man stumbled to his feet, Fry swiped at him with the knife again before chasing him out of the camera’s range. Less than a minute later, Fry ran out the back door of the building.

The victim’s sister told police that she and Fry “had been romantically involved” and he had been showing nude photos of her to people.

She said two of her brothers went to Fry’s building earlier that day to confront him about the photos, but Fry wouldn’t come to the door. The victim was stabbed when he returned by himself.