A Johns Hopkins University student armed with a samurai sword killed a suspected burglar in a garage behind his off-campus home early Tuesday, hours after someone broke in and stole electronics.

Some shocked neighbors said they heard bloodcurdling screams in an area just blocks from the university. Police held the student, a junior chemistry major who turns 21 on Sunday, for several hours, but he was not charged with any crimes Tuesday, police spokesman Anthony Guglielmi said.

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