Developments in the disappearance of Lori Hacking, 27, of Salt Lake City, who was five weeks pregnant and reported missing by her husband after allegedly going for a morning jog on July 19:

Week 1

• Thursday, July 15

— Lori Hacking turns down a request from her mother to attend a performance of the Mormon Tabernacle Choir to attend a going-away party thrown by Hacking's co-workers at Wells Fargo Securities Services. She was quitting to move to North Carolina with her husband, Mark, so he could attend medical school.

• Friday, July 16

— Co-workers say Lori Hacking received a disturbing phone call at work, cried and then went home. The co-workers later tell detectives that they believe the call came from the University of North Carolina medical school, informing her that her husband had not enrolled there.

• Sunday, July 18

— Lori Hacking is seen in the evening by her husband's siblings, who later say she didn't appear to be upset.

— A convenience store clerk reports to seeing Mark and Lori Hacking in the store, near 900 East and 300 South, around 8:30 p.m. Sunday.

• Monday, July 19

— A witness reports seeing someone who looked like Lori Hacking stretching at the entrance to Memory Grove park, between 5:50 and 6 a.m. The witness later says she never confirmed it was Lori Hacking and only saw the runner from behind.

— Lori Hacking fails to show up for work, and friends report that Mark Hacking called them about 10 a.m., saying she was missing.

— Mark Hacking's credit card is used to buy a mattress at 10:23 a.m.

— Thelma Soares, Lori Hacking's mother, says Mark Hacking reported the disappearance to her about 10:30 a.m.

— Mark Hacking calls police at 10:49 a.m. to report his wife missing.

— Mark Hacking helps rescuers search Memory Grove park and City Creek Canyon for his wife.

• Tuesday, July 20

— Early Tuesday morning, Mark Hacking is taken to a hospital and placed under psychiatric care after he is found naked and running around a motel parking lot four blocks from his home.

— More than 1,200 volunteers search for Lori Hacking.

— Police interview Mark Hacking in his wife's disappearance as a matter of routine. "It's important that he be cleared of any suspicion from the beginning," says his father, Doug Hacking.

• Wednesday, July 21