A 25-year-old Chicago man has been charged with first-degree murder in connection with the fatal stabbing of a 71-year-old man during an argument Saturday night on the city’s South Side, police said.
What we know: — Darius Barney, of the South Shore neighborhood, was arrested early Sunday morning around 12:41 a.m. in the 800 block of East 63rd Street, according to Chicago police.
Investigators said Barney was identified as the attacker who, less than three hours earlier, stabbed the victim in the abdomen during an argument outside in the 100 block of West 63rd Street.…