Dozens of Con Edison workers showed up to court on Tuesday as Koran Irvine's alleged killer faced upgraded charges following a grand jury indictment in the suspected road rage shooting.

Victor Romero, a former NYPD detective who had been working as a driver and security guard for a hedge fund, now faces a second-degree murder charge in connection to the fatal shooting of Irvine, 46, on the George Washington Bridge in New York City last week.

Irvine, who leaves behind a wife and two children, worked for the utility company Con Edison for 20 years before Romero, 62, allegedly killed him.

Dozens of Irvine's colleagues attended the hearing Tuesday morning to stand in solidarity with the family of their slain coworker.

"We're brothers here," one Con Edison employee said outside the courthouse, FOX 5 NY reported.

He detailed his friendship with Irvine, noting that their families often "hung out" together and their children were "friends." Following a near collision as the two men drove toward the George Washington Bridge, prosecutors allege surveillance video shows the suspect "aggressively tailgating" Irvine's car before pulling up next to it and firing at least one shot. Authorities conducted a 24-hour manhunt to locate Romero following the shooting.

Romero, who had previously posted a $1 million bail and entered a not guilty plea to initial first-degree manslaughter charges, appeared in court alongside his attorney and his own private security. He made no public comments when approached by reporters outside the courthouse. Romero is now scheduled for a Supreme Court arraignment on Nov. 23.

Fox News Digital reached out to Romero's attorney, Alan Abramson, who could not be immediately reached for comment.