Boston Teen Allegedly Kills Based On Address

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BOSTON — Prosecutors say a Boston teenager who was supposed to be at a Red Sox game while on a day pass from a juvenile detention facility instead stalked the city streets looking for a victim and fatally shot another teen based solely on where he lived.

Ricardo Arias was ordered held without bail after pleading not guilty on Tuesday to killing 18-year-old Alex Sierra.

Authorities say the 17-year-old Arias, in the custody of the State Department of Youth Services because of a gun possession charge, left the baseball game early Saturday, went to the South End with a friend, and asked passers-by if they lived in the Villa Victoria housing project, the home of a rival gang.

When Sierra said yes, prosecutors say Arias gunned him down.

Sierra had no gang ties.