The defenseman moved in from the left point, took a pass from Frank Nazar and put a wrist shot past Kings goalie Anton Forsberg at 7:17 of the third period. Patrick Kane started the play from the goal line to pick up his 899th NHL assist.
Roman Kantserov scored, and Spencer Knight made 25 saves for the Blackhawks (4-8-0), who had lost three in a row. Chicago went 3-4-0 on its seven-game homestand.
Forsberg made 25 saves for the Kings (3-6-2), who went 3-2-0 on their five-game road trip, dropping two of their past three games.
Samuel Helenius gave the Kings a 1-0 lead at 2:31 of the first period with his first goal of the season. He jammed the puck into the net during a scramble in the crease after a shot from the slot by Jared Wright slid under Knight’s pads.
Kantserov tied the game 1-1 on the power play at 16:40 of the second period. Kantserov scored in the slot while going to one knee, taking a pass from Connor Bedard at the goal line after the Blackhawks captain carried the puck down the right side.
The Kings played without defenseman and captain Drew Doughty and forward Corey Perry, both of whom were late lineup scratches. Before the game coach Peter Laviolette said the team was “sifting through a couple of bumps and bruises” following a 6-3 victory at the New York Rangers on Monday.