Old Bridge Man Charged in Child Endangerment Case; Prosecutor Says Vigilante Group Interfered

SAYREVILLE, NJ (Middlesex County) — A 39-year-old Old Bridge man has been arrested and charged following an online child exploitation investigation, but prosecutors say the case may have been compromised by outside interference.

According to the Middlesex County Prosecutor’s Office, Kevin Coposky, 39, was taken into custody Wednesday at his home in Old Bridge without incident.

Authorities say the investigation began after Old Bridge Police received a tip from a concerned citizen alleging Coposky was attempting to meet children online for sexual activity.

Detectives from the Old Bridge Police Department, Sayreville Police Department, and the Middlesex County Prosecutor’s Internet Crimes Against Children Unit launched a joint investigation, which ultimately led to his arrest.

Coposky has been charged with third-degree attempted endangerment of the welfare of a child.

However, prosecutors revealed a major complication in the case.

According to officials, a self-identified vigilante group independently contacted the suspect and publicly shared information about his alleged actions — a move authorities say interfered with and impeded the ongoing investigation.

Officials warned that these actions may have prevented investigators from fully developing the case and securing additional evidence that could have led to more serious charges.

Law enforcement is now urging the public to avoid engaging in similar conduct, emphasizing that interfering in active investigations can jeopardize officer safety, compromise evidence, and ultimately weaken the ability to hold suspects fully accountable.

The investigation remains ongoing.