Reuters Jonathan P. Luna, who was last seen alive leaving a garage. WASHINGTON, Dec. 5 — Jonathan P. Luna, a federal prosecutor in Baltimore whose body was found in rural Pennsylvania on Thursday, was stabbed 36 times and may have been tortured before he was thrown into a creek to drown, officials said on Friday. Mr. Luna's body was discovered near the town of Ephrata, south of Reading, Pa., on Thursday morning, hours before he was scheduled to appear in court in Baltimore, 70 miles away, in the case of a rap artist and his associate accused of running a...