article_snippet: Firefighters have gone through rubble but Nicholas Figueroa, 23, and Moises Luconare, 26, are stil missing .
article_snippet: Twenty-two people were injured - four critically - and Nicholas Figueroa, 23, and Moises Lucon, 26, remain unaccounted for after the blast.
article_snippet: On Saturday, rescue crews with cadaver dogs clawed through smoldering rubble in the search for Figueroa and Lucon.
article_snippet: Rescue crews with cadaver dogs clawed through smoldering rubble in the search for Figueroa and Lucon .
highlights_snippet: Nicholas Figueroa, 23, and Moises Lucon, 26, still missing after explosion .
  