A third man will face charges in the January beating death of an elderly St. Paul widow.

Perrin Cooper Jr., 32, was charged Tuesday in Ramsey County District Court with second-degree murder in the killing of 79-year-old Myong “Susie” Gossel, who was found dead in her East Side home on Jan. 4. He was also charged with simple robbery. Cooper is currently in a county jail in Indiana on unrelated charges, according to the criminal complaint.

Cooper is accused of taking part in a Jan. 2 break-in at Gossel’s house on Nokomis Avenue with 30-year-old Richard Joles and 46-year-old Kevin Reek, who are also facing murder charges in her death.

The three men drove to Minnesota from Indiana on New Year’s Day, telling Cooper’s sister (who was also Joless girlfriend) that they were traveling there to do some work for “a Chinese lady,” the complaint says. Gossel was Korean.

Joles had done some landscaping for Gossel in summer 2016, according to the complaint. He had returned to her house that December and left with several thousand dollars he claimed she owed him for his work; Gossel told a friend the money was stolen, the complaint says. Gossel was known to keep a lot of cash in her home, the charges say.

As the three men were on their way to St. Paul in January, Cooper and Joles became alarmed by Reek’s erratic behavior — Cooper told investigators that all three were using methamphetamine — and ditched him at a truck stop in Wisconsin, the complaint says. After spending the night with a friend in Coon Rapids, Cooper and Joles went to Gossel’s house, where she told them she didn’t need any work done but still gave them $350 to split, according to the complaint.

When they picked up Reek at the Wisconsin truck stop later that morning, he was angry that they had gotten money from Gossel without him and “wanted his share,” the complaint says. The three men returned to Gossel’s house that afternoon to rob her, according to the complaint.

Joles and Reek went into the house while Cooper waited behind the wheel of their vehicle, the complaint says. Joles later told police that Reek killed Gossel while they were inside, according to the complaint.

After leaving the house, the three men had a falling out and parted ways, the complaint says. They have all since been arrested and are in police custody.

Gossel was found fatally bludgeoned in her basement on Jan. 4 by two friends who went to her house after failing to hear from her for a couple days.

Susie Gossel and her husband, who were married for 37 years, owned their home on Nokomis Avenue near Geranium Avenue since 1974. She’d been living alone since he died in 2011.

Joles and Reek were charged with Gossel’s murder in January. No lawyer was listed in court documents for Cooper.