ST. LOUIS — Christian Arroyo's two-run double broke a scoreless tie and the San Francisco Giants beat the St. Louis Cardinals 3-1 in 13 innings on Saturday night.Arroyo's double off the wall in left field scored Buster Posey and Brandon Crawford and came on the 12th pitch he saw from Cardinals reliever Kevin Siegrist (0-1). Posey, Crawford and Eduardo Nunez singled to load the bases, giving the Giants their first runners in scoring position in the game. 21-Month-Old Boy Abducted in San Francisco Found Safe: CHP Giants starter Jeff Samardzija threw eight innings, scattering five hits and striking out eight. He threw 75 of his 105 pitches for strikes.Hunter Strickland (1-1), Derek Law and Josh Osich pitched in relief for the Giants, who won for the seventh time in eight games. Shots Fired During Smash-and-Grab Robbery at Danville Costco Mark Melancon earned his eighth save.The game was stopped for 42 minutes after the 10th inning for a rain delay. Venus, San Francisco's Tallest Statue, Opens to the Public Cardinals starter Carlos Martinez pitched nine innings for the first time in his career, but fell victim to lack of run support. Martinez gave up two hits, struck out five...