Coroner IDs Cause Of Vegas Little Leaguer's DeathClark 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.
Coroner Investigating Little Leaguer Death It could take several weeks before authorities in Las Vegas know why a 9-year-old Little League player collapsed and died while preparing for a game at a baseball park.

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