Salsa Fresca with cayenne

2 (14 1/2 ounce) cans fire-roasted tomatoes , with about half the juice (Muir Glen preferred, about 28 ounces in total) 1/3 cup finely chopped red onions or[...]

1/3 bunch fresh cilantro 4 garlic cloves 10 -12 roma tomatoes (seeded) 2 jalapenos (seeded) 2 limes, juice of 1 onion 1/2 teaspoon cumin 1/2 teaspoon cayenne[...]