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John Ruiz, Morgan Stanley Municipal Debt Analyst, Dies at 53

John Ruiz, a municipal debt analyst who recently delivered a presentation on Puerto Rico for Morgan Stanley, one of the biggest underwriters of the island’s debt, has died. He was 53.

He died suddenly on Feb. 4 at his home in Edgewater, New Jersey, according to his brother, James Ruiz. He had returned the day before from a business trip to Florida.