The substance collected from the van that was driven by Lorenzo Salgado Araujo when he was shot and killed by an ICE agent during a traffic stop in Houston this month was not drugs, according to a spokesperson for the Harris County District Attorney’s Office who said their office had been notified of the results.

This comes after the FBI filed a warrant application saying the agency had cause to believe an investigator found illegal drugs in the vehicle after the July 7 shooting that killed the 52-year-old Mexican immigrant and longtime Texas resident.

When reached for comment, the U.S. Attorney’s Office for the Southern District of Texas said they did not have additional information to provide.

CNN has also contacted the FBI for comment.

The FBI’s suspicion about drugs became public in mid-July after a court unsealed the warrant application. That drew pushback from Salgado Araujo’s family, whose lawyer said she believed the substance was salt, used to make a homemade electrolyte mix.