Do you know what extension he's on? <a href=" http://www.radioliberdadedili.com/nexium-prices-walgreens#loyalty ">nexium administration infant</a> Three people - Martin Richard, 8; Krystle Marie Campbell, 29; and Lingzi Lu, 23 - were killed by the bombs, which were improvised from pressure cookers. Authorities say the Tsarnaevs also killed Massachusetts Institute of Technology officer Sean Collier days later while they were on the run.