Clackamas County Sheriff
Map released of the Clackamas Town Center shooting of Dec. 11, 2012.
The Clackamas County Sheriff's office has wrapped up the investigation into last year's mall shooting case and released documents to the public.
The department released a 7-page PDF with a timeline and other details about the case Wednesday.
Investigators listed 22-year-old Jacob Tyler Roberts as the lone suspect. They confirmed that Roberts took his own life after opening fire in the Clackamas Town Center mall.
Clackamas County Sheriff
Map of the Clackamas Town Center shooting of Dec. 11, 2012.
Sheriff Craig Roberts offered his condolences to the families of the victims.
Steven Forsyth, 45, and Cindy Yuille, 54, died in the attack on Dec. 11.
Kristina Shevchenko, 15, was shot and injured as she walked through the mall to take a MAX train.
Timeline released by Clackamas County:
SUSPECT ACTIONS PRIOR TO SHOOTING INCIDENT:
DEC. 1, 2012: Suspect and girlfriend voluntarily break up. He says he is moving to Hawaii; she doesn't have the money to go with him.
DEC. 5: Suspect tells boss he is moving to Hawaii and voluntarily quits job.
DEC. 7: Suspect stops by job to say goodbye to co-workers. Meets friend at local bar and tells her he is leaving for Hawaii on Dec. 8.
DEC. 8: Suspect buys two 30-round AR-15 magazines from local gun shop, then buys two 20-count boxes of .223 ammo, ear plugs, paper targets at local big-box retailer.
DEC. 9: Suspect buys two 30-round AR-15 magazines and paper targets from sporting-goods store, then buys four 20-count boxes of .223 ammo and paper targets at local big-box retailer. He also lists his car for sale on Craigslist.
* Roommates return from weekend trip and are surprised to find suspect still here. Suspect tells roommates he partied Friday night, and so he overslept and missed his flight. Tells roommates he is still going to Hawaii and says he has switched his flight date to next weekend.
DEC. 11, 2012 -- DAY OF SHOOTING ?(all times approximate):
12:15 a.m. -- Suspect meets friend, Sean Cates, at Putter's Bar & Grill.
1:30 a.m. -- Suspect and Cates buy beer at 7-Eleven and return to Cates' home to drink, play pool, and smoke marijuana. Cates shows suspect his AR-15 rifle (later stolen by suspect). Suspect had seen this rifle several months prior, but Cates had never taken the suspect shooting.
3 a.m. -- Suspect and Cates head to Denny's (across the street from mall) for late-night meal.
UNKNOWN TIME: Suspect confides in Cates that he decided not to go to Hawaii and doesn't want others to know, but is still leaving town. Cates didn't ask further.
5 a.m. -- Suspect & Cates return to Cates' home. Suspect goes to sleep on couch.
Unknown time between 5 a.m. and noon -- Suspect steals rifle.
12 noon -- Suspect stops by his home, talks briefly with roommates, leaves with pair of boots and small plastic bag of clothes.
3 p.m. -- Suspect visits friend Tyler Eheler, who lives two miles from mall. The two talk about him leaving to Hawaii and smoke small amount of marijuana.
3:15 p.m. -- Approximate time suspect leaves Tyler Eheler's.
3:28 p.m. -- Suspect enters Macy's from parking lot wearing a mask and carrying a rifle. Leaves windshield wipers running and his ID in car. There are an estimated 8,000-10,000 shoppers on the mall property at the time.
3:29 p.m. -- Clackamas County 9-1-1 receives a call from Macy's store at the mall.
12 seconds after initial incoming 9-1-1 call, dispatch broadcasts the call for patrol units. Transit Police Officers respond to mall on foot from their office in the MAX parking garage.
First CCSO unit arrives in the mall parking lot at 3:30:29 -- 1 minute and 12 seconds after call was dispatched.
3:30 p.m. -- Shortly after first units arrive, dispatch receives info that suspect has a white face mask, black coat and pants, rifle and is walking into Macy's Home Store. Also begin to get calls confirming victims.
Clackamas County Sheriff's Office
Cindy Yuille and Steven Forsyth were killed Tuesday in a shooting at Clackamas Town Center.
3:29 p.m. to 3:30 p.m. -- Suspect shoots Cindy Yuille, Kristina Shevchenko, then Steven Forsyth, and fires 13 more rounds that do not hit anyone.
3:51p.m. -- CCSO locates suspect dead in service hallway near JC Penney.
This story originally appeared on Oregon Public Broadcasting.