(NewsNation) — Puerto Rico police say they have identified a person of interest in the execution-style killing of an Ohio man who was fatally shot during a solo camping trip earlier this month, after he had texted friends about a mysterious "howler" outside his tent in the nights before his death. Tyler Wilkin, 35, of Wilmington, Ohio, was found shot once in the head in the mangroves near Playa La Selva in Luquillo on July 10. Ohio man was shot once in the head at remote campsite"What I can say is there is a person of interest," González said, adding that he has been in contact with the FBI for "technical support and collaboration." Advertisement AdvertisementGonzález reiterated that no suspect has been named and that the individual is considered only a person of interest at this stage. Wilkin texted a friend around midnight, according to his girlfriend, Iva Mo, who spoke to WKRC.