What happened to 12 young people who were forced at gunpoint into a van in Mexico City's popular Zona Rosa entertainment district on May 26? <a href="index.php?page=&url=http%3A%2F%2Fwww.cnn.com%2F2013%2F06%2F04%2Fworld%2Famericas%2Fmexico-missing-mystery%2Findex.html%3Firef%3Dallsearch">The mystery has gripped nation</a>. Penelope Ramirez is a cousin of Jerzy Ortiz Ponce, who is one of the 12 missing people. She holds a sign with his picture during a gathering of family members in the Tepito area of Mexico City on May 31.
Families of missing haunted by mystery —
What happened to 12 young people who were forced at gunpoint into a van in Mexico City's popular Zona Rosa entertainment district on May 26? The mystery has gripped nation. Penelope Ramirez is a cousin of Jerzy Ortiz Ponce, who is one of the 12 missing people. She holds a sign with his picture during a gathering of family members in the Tepito area of Mexico City on May 31.
Arturo Ascención/CNNMexico
Maria Teresa Ramos, right, the grandmother of Jerzy Ortiz Ponce, is consoled by a neighbor in Mexico City on May 31.
Families of missing haunted by mystery —
Maria Teresa Ramos, right, the grandmother of Jerzy Ortiz Ponce, is consoled by a neighbor in Mexico City on May 31.
Arturo Ascención/CNNMexico
Family members of the 12 missing hold signs on May 31 with the pictures on them and phrases such as "They have not been seen since Saturday at Zona Rosa in Heaven."
Families of missing haunted by mystery —
Family members of the 12 missing hold signs on May 31 with the pictures on them and phrases such as "They have not been seen since Saturday at Zona Rosa in Heaven."
Arturo Ascención/CNNMexico
Family members of Jerzy Ortiz Ponce embrace one another while holding signs for the missing on May 31 in Mexico City.
Families of missing haunted by mystery —
Family members of Jerzy Ortiz Ponce embrace one another while holding signs for the missing on May 31 in Mexico City.
Arturo Ascención/CNNMexico
Relatives of the 12 missing youth protest in front of the general attorney's office in Mexico City on May 31.
Families of missing haunted by mystery —
Relatives of the 12 missing youth protest in front of the general attorney's office in Mexico City on May 31.
ALFREDO ESTRELLA/AFP/Getty Images
Relatives speak to media in front of the general attorney's office in Mexico City on May 31.
Families of missing haunted by mystery —
Relatives speak to media in front of the general attorney's office in Mexico City on May 31.
ALFREDO ESTRELLA/AFP/Getty Images