The bodies of Kenneth and LaKeitha Joseph found separately last month in a New Orleans waterway had been tied up, according to court documents cited by The Advocate.

The bodies had likely been tied up to kettlebells that police suspect may have been purchased at a local store on Feb. 19, the day the couple disappeared, the newspaper reported.

A search warrant said the bodies of Lakeitha and Kenneth Joseph were found tied up at their feet with blue nylon rope. The warrant said Kenneth Joseph’s body was tied to the handle of a 30-pound kettlebell when he was found March 22. Lakeitha Joseph was found March 10, and the newspaper said police suspected she had also been tied to a kettlebell.

The warrant seeks information on an American Express credit card that was used at a Wal-Mart store in Kenner on Feb. 19 to purchased two 30-pound kettlebells and blue utility rope, among other items, according to the news report. The store’s surveillance cameras caught a man and a woman making the purchase, but they are not identified in the warrant, the report said.

The official cause of death for both was drowning.

On Feb. 27 St. John Parish the Baptist Parish Sheriff’s Office detectives received information from the Fulton County Sheriff’s Office in Georgia that the van the Josephs were known to be driving was located in good condition at an apartment complex parking lot in College Park, Ga.

Family members of Kenneth Joseph, 34, and Lakeitha Joseph, 29, reported the couple missing on Feb. 19 after they had not heard from them since Feb. 18 at 6:30 p.m.

Kenneth’s sister told investigators that Kenneth often borrowed her vehicle and would return it before morning the next day. She said that he borrowed her vehicle Feb. 18 at approximately 6:30 p.m. and had not returned the vehicle.