Joseph Vincent, a 55-year-old Florida resident, and James Solages, 35-year-old Haitian American Florida resident, were held last week by Haitian officials and have been charged with supposedly taking part in the killing of Moise.
The DEA did not name which defendant was the informant for the agency, but it remarked it was one of the two people detained last week, adding that the suspects "were not acting on behalf of DEA."
"Following the assassination of President Moïse, the suspect reached out to his contacts at the DEA," the agency said in a statement. "A DEA official assigned to Haiti urged the suspect to surrender to local authorities and, along with a U.S. State Department official, provided information to the Haitian government that assisted in the surrender and arrest of the suspect and one other individual."
The informant suspect was captured once before over two decades ago for allegedly giving false information to receive a U.S. passport. Following the capture, he became a source "at times" for the DEA, the agency told NBC.
A third Haitian American, Christian Emmanuel Sanon, was arrested on July 11 and involved in being the organizer of the attack.
On July 7, Moise was shot by armed robbers in his own residence outside of Port-au-Prince. Authorities in Haiti have been working to locate other suspects in connection to the attack since last week.
Solages and Vincent were held on suspicion of participating in the killing last Wednesday. The two of them told a Haitian judge participating in the study that they served as translators and were not in the room when Moise was killed.
Haitian authorities have taken 21 men into jail for the assassination, many of whom are Colombian.
One of the U.S. government sources said that U.S. prosecutors were considering multiple possible federal criminal charges against alleged participants in the Moise assassination.
Such attacks could constitute violations of the Neutrality Acts, which ban U.S. shipping of weapons and ammunition to foreign nations at war, the International Traffic in Arms Regulation, and a federal law criminalizing the killing of a foreign official, official guest, or globally protected person.
On Monday, a DEA official said that one of the two Haitian-American suspects held last week was a former informant but refused to say which. The DEA official added that the suspect had reached out to the DEA after the assassination and that it made him yield.