Manus Shannon, 27, was charged with reckless discharge of a firearm after the Fourth of July incident. View Full Caption Shutterstock; Chicago Police Department

COOK COUNTY CRIMINAL COURTHOUSE — A suburban man spent his birthday in police custody after he tried to distract his beer-pong opponent with a gun Saturday and accidentally shot two people, authorities said.

Manus Shannon, 27, was playing beer pong at a Fourth of July party in Roseland about 9:20 p.m. Saturday when he pulled out a 9mm semiautomatic gun, according to police and prosecutors.

Shannon began waving the gun in his opponent's face to distract the 24-year-old South Chicago man during his turn, Assistant State's Attorney Erin Antonietti said during a bond hearing Monday.

The opponent pushed Shannon away, and as he did, the gun went off — striking the opponent in his finger and a 20-year-old Roseland man in his shoulder, prosecutors said. According to Antonietti, the 20-year-old was sitting nearby texting at the time and not involved with the game.

The victims drove themselves to Roseland Community Hospital after the shooting, which happened in the 9200 block of South Forest Avenue, police said. Both men's conditions had stabilized.

Shannon was arrested at his suburban Blue Island home late Saturday and charged with reckless discharge of a firearm. Sunday was Shannon's 27th birthday, court documents show.

On Monday, Cook County Judge Adam Bourgeois Jr. ordered Shannon held in lieu of $100,000 bail.

Prosecutors said Shannon had an FOID card and conceal-and-carry permit in Arkansas, where he lived until February. When he moved to Illinois, however, Shannon got an Illinois driver's license, but failed to update his gun paperwork.

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