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LAS VEGAS (AP) - Officials have identified the heart condition that caused a 9-year-old Little League player to collapse and die while preparing for a game last month at a Las Vegas baseball park.
Clark County coroner's officials say Thursday that Spencer Melvin died of hypertrophic cardiomyopathy, a condition that thickens the heart muscle and forces it to work harder to pump blood.
Authorities say Melvin also suffered from acute chronic bronchitis.
Vegas Valley Baseball officials say the boy was preparing for a game April 10 at Rainbow Family Park field when his heart stopped.
Melvin's father and brother, as well as others at the field, couldn't revive him.
Little League teams in the area held events and sold items to raise money for Melvin's family.