APPLETON WI - Patrol officer Stephanie Wiener acted appropriately in trying to defend herself from a May 28 attack by theft suspect Marcus Felton, according to a review by the Green Bay Police Department.The attack resulted in Felton wrestling away Wiener's handgun. He shot her in the hip and then shot Andrew Maltbey, a 23-year-old Appleton man who stopped to help, in the chest before fatally shooting himself in the head, said Lt. Gary Richgels, a spokesperson for the Green Bay Police Department.Green Bay police investigated the shooting at the request of Appleton police. The findings of the investigation were reviewed by the Outagamie County District Attorney Carrie Schneider on Monday.“District Attorney Schneider found no wrongdoing on the part of the officer,” Richgels said during a press conference Wednesday.Wiener was attacked by Felton, 23, of Appleton in the 900 block of South Kensington Drive after she attempted to stop him on the suspicion of stealing cigarettes from two nearby convenience stores.Felton was walking on a sidewalk and didn't comply with Wiener's commands, which were given using her squad car's public address system. At some point, Felton came toward her, getting within 10 to 12 feet and causing Wiener to get out of her squad car and draw her handgun, Richgels said.Felton started shadowboxing in the street, Richgels said. Wiener tried to stop Felton with her Taser, but only one of the two probes hit him, making it ineffective. Wiener also tried to kick Felton as he got closer, but he was able to grab her right hand, which was her gun hand.Appleton Police Chief Todd Thomas said the two fought violently for control of the handgun. He said Felton was much bigger than Wiener.“They fought with each other trying to point the barrel of the gun at the other person,” Thomas said. “Officer Wiener said she knew if he got her gun, he was going to kill her, so she was trying to point the barrel of the gun at his neck or head and shoot him, while he was trying to do the same thing to her.”Thomas said Wiener would have been justified in shooting Felton “to stop his threat to her life.”Maltbey had pulled up behind Wiener's squad car. After the Taser failed, he got out and tried to help Wiener.Thomas described Maltbey as a very strong, young and fairly large man. He said Maltby tried to pull Felton off of Wiener but couldn’t.“This shows the strength that the suspect possessed at that time,” Thomas said. “Mr. Maltbey didn’t want to be called a hero, but he is.”After Wiener lost her handgun, she attempted to run for cover and got about six steps away when she was shot by Felton, Richgels said. Maltbey also was trying to take cover when he was shot.Thomas said Wiener acted in accordance with protocol when she got out of her squad car as Felton approached her. He said Wiener didn’t know if Felton was armed.“As she was trained, officer Wiener did not allow herself to be trapped inside her vehicle,” Thomas said. “We’ve all seen the videos in the last couple years of officers being ambushed and assassinated in their squad cars.”Wiener initially drove past Felton and called for backup, Richgels said. She followed him in her squad car and tried to get him to stop before he turned and came toward her.Wiener, who has been with Appleton police since January 2015, and Maltbey are recovering from their injuries. Police gave Wiener a hero's escort when she was released May 31 from ThedaCare Regional Medical Center-Neenah. Maltbey was released from a hospital two days earlier.Thomas asked Green Bay police to investigate the shooting, though Thomas said that wasn't required by law because Felton's death wasn't caused "by the direct action, or omission to act, of a police officer." Thomas was a captain with the Green Bay Police Department before becoming chief in Appleton."I felt that our commitment to being transparent would best be fulfilled by having an outside agency investigate the incident for us," Thomas said the day of the shooting.Felton's family told USA TODAY NETWORK-Wisconsin that he was being treated for a mental illness and was having a difficult time coping with his medication. "The medication they were giving him was sending him into rages," Felton's mother, Jennifer Simon of Appleton, told USA TODAY NETWORK-Wisconsin.