A former New York City police officer was convicted on Wednesday of faking a mental disability to get more than $200,000 in benefits from the Social Security Administration, the first verdict by a jury to arise from an indictment of numerous former officers and firefighters in January 2014.

A jury in State Supreme Court in Manhattan found the former officer, Kevin Hurley, 56, guilty of grand larceny after three days of deliberations.

More than 100 of those indicted in the scheme have pleaded guilty, including four ringleaders who admitted that they coached officers and firefighters to mimic the symptoms of post-traumatic stress in order to convince the government to grant them disability benefits. Many of the defendants claimed falsely that they were disabled as the result of their experiences in the terrorist attack on Sept. 11, 2001.

Image Joseph Esposito, a former New York City police officer, in August 2014. He testified in the case against Kevin Hurley that the ringleaders of a government benefits scam had recruited former officers like Mr. Hurley and taught them how to fake disabilities. Credit... Brian Harkin for The New York Times

Mr. Hurley, of Windsor, N.Y., said on his benefit applications that he was so depressed and crippled by panic attacks that he could not drive, manage money or go shopping, the evidence showed. Yet prosecutors demonstrated that he had paid all of his bills on time, driven his car more than 25,000 miles a year and made hundreds of purchases at stores and restaurants. He collected $2,000 a month from 2005 to 2013.