Brett Gardner's 14-year-old son Miller may have died from carbon monoxide poisoning, Costa Rica's Judicial Investigation Agency (OIJ) announced Monday.
OIJ Director Rándall Zúñiga revealed via a press briefing high levels of carbon monoxide were detected in the Gardner family's hotel room at the Arenas Del Mar Beachfront & Rainforest Resort in Manuel Antonio.
Zúñiga also noted in his native Spanish language that the family's room was located next to "a specialized machine room" which may have caused the contamination .