From the NYT
On the streets, vigilantes prowled for suspects, and the police killed at least three people in gunfights. The vast majority of those arrested have turned out to be from Colombia — former military men said to have turned mercenaries — as questions arose about why it had been so easy for attackers to burst into President Jovenel Moïse’s home and kill him, seemingly with no shots fired from security staff.
Haiti Calls U.S. for Troops, After Wild Day of Gunfights and Suspicion
At least 20 people were arrested in the assassination of the Haitian president — 18 Colombians and 2 Americans of Haitian descent — on a day of deepening mystery.
The two Americans arrested said in an interview with a Haitian judge that they were not in the room when Mr. Moïse was killed and that they had worked only as interpreters for the hit squad. One said he had answered an internet ad for the job.