Through the course of over two years, the case of missing West Valley mother Susan Powell has been filled with mystery, heartache, and questions. Here are some of the groundbreaking events during this case.
At 12:30 a.m., Josh Powell reports last seeing his wife as she goes to bed and he leaves with children for late-night camping trip in the west desert near Tooele. Police respond to the couple's West Valley home later in day, 6254 W. Sarah Circle, after Susan failed to show up at work and drop their kids off at daycare. At 5 p.m., Josh returns home with the boys, is informed the family was feared missing and meets with police.
Police label Josh Powell a "person of interest" in his wife's disappearance after an interview.
Two days later, Josh Powell and his sons travel to Puyallup, Wash., to stay in the home of his father, Steven Powell, for the holidays.
Family and friends of Susan launch a social media campaign to spread word of the woman's disappearance on Facebook, Twitter and YouTube.
Two days later, Josh Powell and his brother, Michael, arrive at the Powell's West Valley City home to pack the family's belongings. Friends say Josh Powell, who has been fired from his job, may be unable to keep the home and is moving to Puyallup.
At the end of the month, West Valley City police serve a search warrant on Josh Powell and seize the blue minivan he drove the night his wife disappeared.
Chuck Cox and Ed Smart appear together in Utah as part of an effort to raise awareness for kidnapped children and promote legislation that would require that DNA samples be taken from people arrested on suspicion of a felony.
Josh and his father, Steve, propose a theory on their website - susanpowell.org - that Susan ran off with another missing person, Utahn Steven Koecher.
Steven Powell says he will post portions of Susan Cox Powell's childhood journals online.
West Valley City police report a break in the case and conduct a two-day search of abandoned mine shafts in Ely, Nev. Few other details are released.
Six days later, 13 West Valley City investigators, with 10 from the Pierce County Sheriff's Office, serve a search warrant on the Puyallup, Wash., home of Josh Powell and his father, Steven Powell.
Boxes of videos, photographs and various computer equipment, as well as Susan's childhood diaries, were taken as evidence from the home.
Investigators conduct a 10-day grid search, using cadaver dogs, near Topaz Mountain in Juab County. Details of the search are not released.
Washington police arrest and charge 61-year-old Steven Powell with 14 counts of voyeurism and possession of child pornography, based on evidence seized from his home during August search.
A judge orders the sons of Josh and Susan Cox Powell to be removed from the home and placed in protective custody.
The following day, Steven Powell pleads not guilty to charges, but remains in jail.
A Washington judge rules that Susan Cox Powell's childhood diaries cannot be released to the public. Josh Powell files a 22-page response to the order. Chuck Cox files petition for custody of the young boys.
A Washington judge grants custody of the sons of Josh and Susan Cox Powell to the boy's maternal grandparents, Chuck and Judy Cox. Order cites safety concerns. Judge also orders Josh Powell to undergo a psychological evaluation and attend parenting classes.
Friends and family of Susan Cox Powell hold charity event in Utah, marking two years since her disappearance.
A Washington judge orders Josh Powell to undergo a psychosexual evaluation, including a polygraph test. The order comes during a hearing about the custody status of Josh and Susan Cox Powell's two young boys, now ages 4 and 7.
Along with messages to family and a pastor, Josh Powell sends an e-mail to his attorney with a simple message: "I'm sorry, goodbye." Powell then sets his house ablaze in Graham, Wash., killing himself and his two young sons, Charlie, 7, and Braden, 5. An autopsy later shows the children also suffered hatchet wounds to their necks. Police say the case of missing Utah mom Susan Powell remains open, though some mysteries may never be solved.