The Tucson Police Department recently received information that a group of five individuals, including two males and three females, may have information about the disappearance of Isabel Celis, which occurred between the hours of 11 p.m. on April 20, 2012, and 8 a.m. on April 21, 2012. It is believed that the group was walking in an eastbound direction along the northern side of Saint Joseph's Catholic Church, located at 215 S. Craycroft Road, at approximately 1 a.m. to 1:30 a.m. on Saturday, April 21, 2012. They may have been walking in the direction of or directly to East Cooper Street. At that time of the early morning, the group may have been leaving the area of the Cactus Moon Nightclub or Risky Business Restaurant and Bar (located in the area of East Broadway and South Craycroft Road). The Tucson Police Department urges the members of the group to call 911 as soon as possible.