Updated

A Minnesota man now faces a charge of second-degree murder after the 75-year-old bus passenger he allegedly attacked last week died from his injuries.

Leroy Davis-Miles, 23, of Minneapolis was initially charged with felony assault in connection with the Nov. 6 beating, which occurred at the city’s Chicago-Lake Transit Center, FOX 9 of Minneapolis-St. Paul reported.

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Surveillance footage shows the elderly passenger asking Davis-Miles and others to lower their voices, with the group responding by threatening to attack the man after he exits the bus, the report said.

Leroy Davis-Miles, 23, of Minneapolis, now faces a charge of second-degree murder in connection with the death of a 75-year-old man, authorities say. (Hennepin County Jail)

According to video footage and witness accounts, Davis-Miles later punched the elderly man outside the bus, causing him to fall backward and strike his head against the pavement, police said.

After the man fell, Davis-Miles shook hands with his friends “in a congratulatory manner,” then several members of the group rummaged through the victim’s pockets as he lay unconscious on the ground, the Star-Tribune of Minneapolis reported.

Police told FOX 9 the man suffered a serious brain injury and died 1:36 p.m. Tuesday, becoming the 39th homicide victim of the year in Minneapolis.

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Minneapolis police said they were working with the Hennepin County Attorney’s Office to upgrade the charges against Davis-Miles.

Authorities have not disclosed the identity of the man who died.