Bonsai, a puppy born with medical conditions causing half of his body to be amputated, has passed away. The sixteen-month-old pup who melted hearts around the world just one year ago suffered from a lethal cardiac incident in his sleep, according to his rescuer. At three-weeks-old, Bonsai was brought to Friends of Emma, a home for animals with severe medical needs. He also served as the official mascot for iSACRA, a human organization benefiting people affected by his same rare condition.