Amber Lynn Costello

Amber Lynn Costello was 27 years old and lived at 1112 America Ave. in West Babylon when she was last seen by acquaintances. Costello was a heroin addict who lived at the house with another female and two men, who were also heroin addicts. Costello, who was 4 feet 11 inches tall, and was a sex worker who advertised on Craigslist and Backpage to support her and her roommates’ heroin addiction. Costello used the names Carolina or Mia and had tattoos of “Kaos” on her neck, a butterfly on her lower back and the word “Margeret” on her leg.

Costello had moved to New York from Clearwater Florida and had completed a 28-day drug rehab, but had relapsed not long before her disappearance.

Costello and her roommates shared a cellphone. The other female roommate was also a sex worker supporting a heroin addiction and the two male roommates would arrange dates with clients for the women. Costello did “in-calls” at her home, as well as “out-calls”.

When Costello would meet clients at her home, the two male roommates would often arrange a scam, during which, once a client had paid money, and before any sex acts occurred, they would confront the client saying Costello was their girlfriend and the client would flee.

Costello was last seen leaving her residence on foot on September 2, 2010 to meet a client who was picking her up at her house. Costello did not have her cellphone with her at the time and she was never reported missing.

Costello was found on December 13, 2010 on the north side of Ocean Parkway, near Gilgo Beach, during the search for missing person Shannan Gilbert.

She is believed to be the fourth victim in what is known as the “Gilgo Four”.

The Suffolk County Police Department remains committed to seeking justice for the victims in these cases. Suffolk County Crime Stoppers has recently announced the reward leading to an arrest in this case has been increased from $25,000 to $50,000.

Known photographs of Amber Lynn Costello

Courtesy of Amber Lynn Costello's family