The music community is in mourning once again, as Puerto Rican singer Ray Reyes passed away at 51 years of age. The singer's death was confirmed by his brother Raul on Facebook post Friday, and while it did not release a cause of death, Primera Hora reported the death was caused by, 'a massive heart attack.' Raul also asked his brother's fans to keep his family in their prayers and to always remember his legacy. Mourning: The music community is in mourning once again, as Puerto Rican singer Ray Reyes passed away at 51 years of age Heart attack: The singer's death was confirmed by his brother Raul on Facebook post Friday, and while it did not release a cause of death, Primera Hora reported the death was caused by, 'a massive heart attack'