PORT ST. LUCIE, Fla.– Robert Peigne, the food delivery driver who was shot and killed in Port St. Lucie on Wednesday, was once a doctor in Haiti, WPTV reports.

Paigne was using his wife’s door dash account to deliver food while waiting to receive his U.S. medical license.

Before coming to America, Peigne worked for years to help bring access to healthcare for the citizens of South East Haiti, according to his long-time friend Louise Lindenmeyr.

Lindenmeyr worked with Peigne with his efforts in Haiti and told WPTV, “He was truly a gem.”

The extreme increase in violence in the country caused Peigni and Lindenmeyr to flee to the United States.

Peigne’s wife tells WPTV that she is devastated and anxiously awaiting answers from the police.

Authorities have not made an arrest in the shooting.