SATURDAY, APRIL 21, 2012
Around 5:00 AM: Sergio wakes up on the couch, during which, he claims to have not heard “anything weird,” and moves to sleep in the master bedroom with Becky.
Around 6:30 AM: A neighbor, Alicia Stardevant, is awoken by “dogs barking.” She later describes the commotion to media outlets as her dogs and the Celis family dogs “going nuts.”
The following floor plan was created by Ellie Tza, a Reality Chatter forum user, for reference in the “Isabel Celis Documents” thread.

Around 7:00 AM: Isabel’s mother, Becky, leaves for her shift as a nurse at Tucson Medical Center. (However, some sources report her leaving as early as 6:30 AM.)
Later, when asked by a 911 operator, Becky asserts that she “didn’t hear anything at all” and does not mention the dogs barking in subsequent interviews.
8:00 AM: Isabel’s father, Sergio, goes to wake Isabel up and discovers that she is missing.
8:14 AM: Sergio calls 911 and reports Isabel missing.
In the call, Sergio immediately mentions that he “[believes Isabel] was abducted” to which the operator replies “Why do you think she was abducted?” Sergio then replies, “I have no idea.” Though this initial exchange seems suspect, Sergio does explain that they’ve searched “everywhere in the house” and have already found the window screen “laying in the backyard.”
However, his calm and collected demeanor on this 911 call, during which he even “(chuckles)” about telling Becky “to get her butt home,” proves to be inexcusable to many critics afterwards.
8:45 AM: Surveillance footage captures Isabel’s family “looking around her house” and her mother’s SUV racing home. Becky is described as “visibly upset and crying intermittently” in police reports.
Once police arrive, the authorities conduct a door-to-door search in the immediate neighborhood. Police also search “adjacent neighborhoods and a nearby landfill.”
MONDAY, APRIL 23, 2012
Police search the Celis residence with two FBI dogs- a cadaver dog and a search and rescue dog. They do not release details or specifically confirm any findings, but claim that they “may have found evidence that [requires] a follow-up.”
FRIDAY, MAY 11, 2012
Sergio Celis moves out of the family residence.
According to reports, “child welfare authorities stepped in.. and [they all] reached an agreement that Sergio Celis wouldn’t have contact with his 10- and 14-year-old sons.”
However, CPS and authorities never publicly confirm or clarify the nature of this strange situation. Becky publicly insists:
“My husband’s a great father. He’s a great husband, a great father to the boys and to Isabel. At the end of the day when Isabel comes home, everybody’s questions will be answered.”