A retired Miami police sergeant testified in federal court today that he found the wallet and license of businessman and murder victim John B. Callahan in a Cuban neighborhood of Miami, corroborating testimony that James “Whitey” Bulger wanted to make it look like Callahan was killed by Cubans in a deal that had gone bad. Full story for BostonGlobe.com subscribers.

Milton Valencia can be reached at mvalencia@globe.com.

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