Lori and and Mark attend a housewarming party in Bountiful.
Early morning: Mark Hacking tells family that his wife Lori has gone missing during a jog in Memory Grove.
10 a.m. — The owner of Bradley's Sleep Etc. says Mark Hacking walked into his store just before 10 a.m. to buy a mattress and two pillows.
10:49 a.m. — Mark Hacking calls 911 to report his wife had disappeared, police say. When police arrive at Memory Grove, Mark Hacking is already there. An intensive search begins, involving police, family, friends and volunteers.
2 a.m. — Mark Hacking reportedly was picked up by police at the Chase Suite Hotel, after police dispatchers took a call about a "disturbance." Family members subsequently say Mark Hacking was checked into a psychiatric unit at the University of Utah Medical Center.
Thousands of volunteers join the search for Lori Hacking in the Memory Grove/City Creek Canyon area. Their numbers will fluctuate over the coming days.
Mark Hacking becomes a person of interest after it is discovered that he had deceived his family for two years, leading them to believe he graduated from the University of Utah and was accepted to medical school in North Carolina.
The search for Lori Hacking leads to a municipal landfill and includes the use of cadaver dogs, police confirm.
Sources confirm to the Deseret Morning News that a blood-stained knife with hair attached to it was included in evidence seized from the Hacking home. Police evidence technicians collect a clump of hair from a trash bin at a Chevron gas station at the corner of 2100 South and 300 West.
More than 3,000 people turn out to distribute fliers and join the search for Lori Hacking — the largest turnout since her disappearance. Later, about 200 people attend a candlelight vigil at Memory Grove Park.
It's confirmed that Mark Hacking has hired Utah defense attorney D. Gilbert Athay. Lori Hacking's colleagues at Wells Fargo Securities Services say she left work early Friday, July 16, in tears, after receiving an upsetting phone call.
Police and family clear out Mark and Lori Hacking's apartment and remove crime-scene tape. Community organizers call off volunteer search efforts.
Police say there is a possibility Lori Hacking never went jogging and was never in Memory Grove. A convenience-store clerk reports having seen Mark and Lori Hacking in the store, near 900 East and 300 South, around 8:30 p.m. on July 18.
Police confirm that a Dumpster was confiscated from behind a meetinghouse of The Church of Jesus Christ of Latter-day Saints at 951 E. 100 South, less than one block from the Hackings' residence.
The families of Mark and Lori Hacking receive information from Mark Hacking that causes them to discontinue any further searching.
Police receive "additional substantive information" from a member of the Hacking family to be "followed up by investigators."
Police say evidence retrieved from the Hackings' apartment, the seized Dumpster and Lori's car have led them to arrest Mark Hacking on suspicion of aggravated murder in the disappearance of Lori Hacking.
Court filings suggest Mark Hacking killed his wife, Lori, while she was sleeping and then dumped her body in a Dumpster. The landfill search resumes with the assistance of cadaver dogs and continues intermittently into October.
Mark Hacking's brothers, Lance and Scott, say he told them on July 24 that he killed his wife, Lori.
The Salt Lake County District Attorney's office charges Mark Hacking with one count of first-degree felony homicide and three counts of second-degree felony obstructing justice. His bail is set at $1 million. New allegations reveal that Mark Hacking shot his wife in the head with a .22-caliber rifle while she slept on the morning of July 19. Allegations also suggest Mark and Lori argued about his lies regarding his schooling before the killing.
Mark Hacking makes initial court appearance.
New allegations suggest that Lori learned on July 16 that Mark had not applied to medical school after checking with the University of North Carolina at Chapel Hill about financial aid. Meanwhile, friends, neighbors and family gather at a memorial service held for Lori Hacking.
Mark Hacking appears in court, preliminary hearing scheduled for Sept. 23.
Thelma Soares, Lori Hacking's mother, announces the establishment of a scholarship in memory of her daughter for students attending the University of Utah's David Eccles School of Business.
Thelma Soares appears on the Oprah Winfrey show and accepts a $50,000 donation from Winfrey. Additional donations continued to be offered following her national interview.
Mark Hacking waives his preliminary hearing. Arraignment is scheduled for Oct. 29, when Hacking will be expected to enter a plea to the charges.
Police say the search for the remains of Lori Hacking at the Salt Lake County landfill is placing them close to the area where Hacking's body might be. Newspapers with dates of July 15 to July 19 have been found.
About 8:20 a.m., a volunteer at the Salt Lake County landfill finds human remains in an area where investigators have been looking for the body of Lori Hacking. The state medical examiner's office uses dental records to identify them as Lori Hacking's. The search has continued 33 days, and volunteers searched through 4,600 tons of garbage.