Messages of love and heroism have emerged from tragedy as hundreds gathered at a park less than a mile from where a gunman unloaded rounds of ammunition on a Jewish congregation, killing a long-time synagogue member and wounding three others. “It’s all about peace, all about love, and it’s all about kindness,” said Rabbi Yisroel Goldstein, one of the injured, who was moved to tears by the showing of support at Valle Verde Community Park on Sunday. “Wow, wow, wow. Look at love.”