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A timeline of the events surrounding Katelyn Markham's disappearance:
*John Carter, fiancé, reported Markham missing on Sunday, Aug. 14, 2011.
*Carter was last one to see her when he left her home on Dorshire Drive around 11 p.m. on Aug. 13. Said he received a text from her around 1 a.m. on Aug. 14.
*Carter said the pair was planning a trip to Colorado in November where they hoped to move in the fall.
*Investigators said her purse and car were left at her home. Her cellphone was missing from her home.
*Father told 9 On Your Side he thought she might have opened the door for someone and that's how she went missing.
*Markham worked two jobs. One at David's Bridal in Tri-County and the other at the Art Institute of Ohio bookstore in Mason. That's also where she was an art student.
*Missing just before her 22nd birthday
*Family releases photo of engagement ring in hope someone might recognize it.
*Described as having six or seven diamonds that form a zig-zag and had a gold band.
*Investigators begin analyzing phone records, computer, bank accounts, etc. for clues.
*Police changed locks on her home to secure it
*Lt. Kevin Haddix called the case "unique" because of "the fact that someone has literally just vanished without any indication as to where they would go or why they would go there or who would be involved in their disappearance."
*Said there was no person of interest in case.
*Detectives search Markham's townhome
*No sign of foul play detected
*911 call released: Carter said the Sacred Heart Festival was going on up the street and "there are a lot of questionable people there, I'm sorry."
*Police said Carter reported Markham missing after she didn't show up for work
*Vigil held at the Fairfield West Baptist Church at 7 p.m.
*$3,000 reward offered on Monday, Aug. 22 on the "Bring Katelyn Markham Home" Facebook Page.
*"Nancy Grace" show covers Markham case on CNN.
*Markham's fiancé, John Carter, did a phone interview with Grace .
*About a dozen volunteers gathered to search for Markham in wooded area of Lick Road off West Kemper Road in Hamilton County.
*Carter and Markham's family members organized a search party, then volunteers began aiding in the effort.
*On Saturday, Aug. 27, more than 100 people fanned out in Harbin Park looking for any evidence of Markham.
*On Sunday, Aug. 28, a smaller crowd spend the evening searching the wooded area along the Fairfield border.
*Another search held Monday, Aug. 28, at the Lake Gloria, also now known as Glory Lake, and Triple Creek Park.
*Texas EquuSearch leads more than 150 volunteers on search effort, sets up command center in Fairfield.
*Tim Miller, agency's founder, met with volunteers and police.
*Search intensifies for Markham with more than 180 volunteers and 21-person horse search team, despite the heat.
*Jeff Ruby offers $10,000 to help search continue.
*Markham's father, David Markham, speaks to 9 On Your Side.
*Said she was about to graduate from college, studying graphic design.
*Was asked not to participate in search because he was distracted.
*Katelyn was the oldest child, had one younger sister.
*Search goes into third week.; EquuSearch sends team of 25 back to Butler County.
*Texas Equusearch remains at command center, but volunteers with experience from Texas, Florida and South Carolina serve as team leaders in the latest round of searching – last few days of Equusearch.
*Jeff Ruby provides food for searchers.
*Body found at Ceaser State Park on Thanksgiving Day.
*Coroner later said the body was not Markham's.
*Volunteers launch "Operation Valentine," which marks six months since her disappearance.
*Jeff Ruby donates $25,000 to reward fund, bringing it to $50,000.
*Texas Equusearch named Ruby to its Board of Directors.
*Vigil held for Markham in the parking lot of Main Street Market and Planet Fitness in Fairfield.
*Friends, family create "Hope for Katelyn: An Awareness Event." Attendees received flower seeds to plant at home to "watch hope grow" for Markham.
*Supporters create necklace to keep her disappearance in public's minds.
*Necklace sold for $4, featured photo of Markham.
*Gurpreet Kang, 26, of Hamilton was arrested on June 15, 2012 for sexual assault incident that happened in Oxford in 2011.
*Police said Kang reportedly worked at a convenience store near Markham's residence and lived in her neighborhood.
*Police made no further comment about his link to Markham's case.
*Kang was charged with sexual battery.
*One year since her disappearance.
*Still no arrests made.
*$50,000 reward still remains.
*No info released on link between Markham and Kang for possible connection.
*Kang released from jail and put on electronic monitoring.
* Ind. police say Markham's remains were found, ending a 20-month search.
*Skeletal remains were found in rural Indiana on April 7 by a conservation officer; Remains were taken to Franklin County Coroner's Office for DNA testing.
*Body found 30 miles from her Fairfield home in rural town of Cedar Grove, Ind.
*Case considered a "death investigation" at this time.
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