Police arrest two men in Valentine's Day shooting at Gardens Mall Two men arrested in Gardens Mall Valentine's Day shooting. Devon Jamal Graham and Kemarcio Antonio Mitchell are suspects in police custody. PALM BEACH GARDENS — A federal grand jury has formally indicted a West Palm Beach man on a weapons charge related to the Valentine's Day shooting at The Gardens Mall, the U.S. Attorney's Office said Tuesday, Feb. 27. Kemarcio Antonio Mitchell, 28, will face charges of unlawfully possessing a