A Galloway Township man secretly took videos of men in bathroom stalls for months at various locations, police said.
Daniel Zhang, 23, was first charged Sept. 16, after Hamilton Township police were called to the Planet Fitness.
Zhang told police he recorded by standing in one stall, and then lifting his cell phone so it recorded a stall on the other side of the barrier.
He had seen the victim at the gym one or two times before, and had recorded him one other time, according to affidavit of probable cause obtained by BreakingAC.
The details indicate the victim was going to the bathroom.
Zhang was asked if he had any other recordings on his phone and said, "like four" over the past couple of months, and said one was at a Wawa.
He said he recorded them because of "attraction" to the men, according to the affidavit.
Zhang was charged on a summons at the time, and released.
But an investigation found 49 videos on his phone of unidentified victims that started May 27.
Nineteen of the incidents took place in Mays Landing, the affidavit states. Other locations included Egg Harbor City, Medford in Burlington County and Bermuda.
Zhang's address is listed as Egg Harbor City, but BreakingAC has confirmed with other agencies that his address is in Galloway Township.
He was charged with 15 counts of third-degree invasion of privacy and arrested Tuesday.
Zhang is in the Atlantic County Justice Facility pending a detention hearing set for Monday.
He has retained a private attorney, Joseph Zysman, who appeared briefly during Zhang's first appearance via video Wednesday.
Zhang does not appear to have an adult criminal history.