Police in Puerto Rico have made an arrest tied to the fatal shooting of a US tourist who was visiting the island for a Bad Bunny concert — as new details about the tragic case emerged Monday.

Kenneth Giovanni Estrada Melendez is believed to have been the intended target of gunmen who opened fire inside a bar near Old San Juan on Sunday, killing 25-year-old Queens resident Kevin Mares, local reports said.

Melendez, 27, was picked up on a drug warrant after fleeing the scene, Puerto Rico’s El Vocero reported .

Mares, who was on vacation with his longtime girlfriend, was at the bar, called El Refugio Para Hombres Maltratados — Spanish for “the refuge for mistreated men” — in the downtrodden neighborhood of La Perla when a scuffle resulted in gunfire shortly before 4:15 a.m., the outlet

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