(RNN) – Officials released the name of the gunman who opened fire at a mall in Portland, OR on Tuesday, as well as the names of the two people he killed.
Clackamas County Sheriff Craig Roberts said at a Wednesday news conference that Jacob Tyler Roberts, 22, fired multiple times inside the Clackamas Town Center. The shooter then died of a self-inflicted gunshot wound at the scene.
"During this attack, he was armed with an AR-15 semiautomatic rifle," Craig Roberts said. "The rifle was stolen [Tuesday] from a person known to the suspect. At the time of the attack, he was wearing a load-bearing vest, not a bulletproof vest that was earlier reported by some outlets.
Officers haven't been able to determine how many shots Jacob Roberts fired "although we believe he was carrying many fully loaded magazines."
The two victims were Cindy Ann Yuille, 54, and 45-year-old Steven Mathew Forsyth. The third shooting victim, Kristina Shevchenko, survived and is being treated at Oregon Health & Science University hospital.
Yuille was reportedly a hospice nurse for healthcare consortium Kaiser Permanente.
"Cindy was everybody's friend. She was a wonderful person who was very caring and put others first," said Yuille's family in a statement Wednesday.
Forsyth owned a store at the shopping mall called Coastoms.
"Steven Mathew Forsyth was a loving husband, father of two children, son, brother, uncle, youth sports coach and friend to the many people who had the privilege to meet him," said Forsyth's family in a statement. "He had a great sense of humor and a zest for life. He had vision and a belief in others that brought great joy and value to many lives. He will be sorely missed by all who knew him."
Shevchenko was taken to an area hospital after she managed to evacuate the mall with bullet fragments inside her.
"Just by definition, what she had to do to get out of that situation - it's clear to me. To me she's a very brave young woman," said Oregon Health and Science University surgeon Laszlo Kiraly.
Kiraly confirmed that bullet fragments punctured her lung and damaged her liver.
Shevchenko's family has set up a fund and Facebook page to help pay for her costly medical expenses.
People wishing to learn more or donate can visit Shevchenko's Facebook page or text "SUPPORT" to 28594.
The sheriff said the 22-year-old shooter didn't appear to be targeting anyone in particular when he entered the Clackamas Town Center. Roberts' rifle jammed during the attack, but he managed to get it working again.
"At this time, we do not understand a motive of this attack, except to say that there is no apparent relationship between the suspect and his victims," Craig Roberts said.
He added Jacob Roberts had several loaded magazines with him. Officials had not determined how many shots were fired inside the shopping mall.
"It's very apparent he had a mission set forth to take the lives of people in that mall," Craig Roberts said.
Officials do not believe there were other shooters involved. Craig Roberts added there had been no "indicators" the attack would happen.
Clackamas County 911 operators first received calls from shoppers at 3:30 p.m. PST after they heard gunshots at the mall.
"Our first unit arrived one minute after the first call was made," Craig Roberts said. "Our officers are trained to not wait for SWAT teams and to team up while units arrive and move immediately to engage in a threat no matter what it might be. Everyone did an amazing job."
At the time of the attack, Roberts was wearing a load-bearing vest, not a bulletproof vest, as has been reported. He was also wearing a hockey-style face mask.
A woman shopping at the Clackamas mall told local TV station KPTV she and her boyfriend saw the man carrying the assault rifle and wearing a white mask, body armor and gloves.
"He had dark brown hair and death in his eyes," Dieringer said. "He was very calm and very on track. He knew what he was going to do."
A witness told CNN the shooting spree sounded like a machine gun and got to cover as quick as possible.
"The gunfire was going off long enough that we had time to stop and say, ‘What is this noise?'" Alexsis Winterhalter said. "And we realized, "Oh my gosh. That's a gun. That sounds like a machine gun," and the receptionist at the hair salon looked out into the mall and she saw people scattering and running everywhere, and we realized at that point we needed to get out of there because we weren't sure where gunfire was coming from, if it was near to us."
Police commended citizen heroes, shoppers who also happened to be ER nurses and a physician who provided care to the wounded.
Oregon Gov. John Kitzhaber issued a statement soon after news of the shooting broke, offering his assistance to the mall patrons.
"My thoughts and prayers are with the victims and their families. I appreciate the work of the first responders and their quick reaction to this tragic shooting," said Kitzhaber. "I have directed State Police to make any and all necessary resources available to local law enforcement."
An estimated 10,000 people pass through the mall daily during the holiday season. The mall is one of the biggest in the state.
Clackamas Town Center will be closed at least through the end of the day Wednesday.
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