A Macon family is mourning a man who was stabbed to death this week.

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The Bibb County Sheriff's Office says 62-year-old Mark Green was stabbed at McAfee Towers Wednesday by his his girlfriend, Sheldon McCoy, after an argument.

McCoy is charged with murder. She is being held without bond in the Bibb County jail.

Green's younger sister, Rachelle Head, says her brother was a funny guy who loved kids. She says Green never brought McCoy around family or talked about her. Now, she says she wants to know why the stabbing happened.

"You took away a brother, you took away a son, you took away a father, you took away a friend. You took all of that, over what?" Head said.

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The family say they are planning Green's funeral for Tuesday.