It is not known who produced the list, although Gov. Gary Herbert has called for an investigation to see if the list was compiled by someone with access to state databases containing personal information. The list contains birth dates, workplaces, addresses, phone numbers and Social Security numbers. Names of children are included. Several pregnant women have their exact due dates listed. All the names seem to be Hispanic.
"This is a way to terrorize people," said Tony Yapias, director of Proyecto Latino and a former state director of Hispanic affairs.
He spent much of Tuesday calling people on the list to warn them and to figure out who may have collected the information.
"I'm nauseated," he said through tears. "All of these people are terrified. I don't have words to describe how scared they are. It just breaks my heart what they are telling me."
While some are worried about deportation, others fear that "crazy people" could use the list to hurt them or their families, Yapias said.