Linda Lorraine Howe, the woman accused of shooting the manager of her assisted living facility on B.C.'s Sunshine Coast on Tuesday, has been charged with 10 counts including three charges of attempted murder.

She was also charged with one count of robbery, three counts of pointing a firearm, possession of a weapon without a licence and several other firearms-related charges.

Howe's father says his daughter has never recovered after suffering from a brain injury several years ago.

Speaking from his Gibsons, B.C., home, Ken Howe, a retired carpenter, told CTV News that his 40-year-old daughter -- who is a Gulf War veteran -- was involved in a car accident several years ago that changed her personality.

"It scrambled her real bad," he said.

Sunshine Coast RCMP shot Howe several times after she opened fire on 47-year-old Kenn Perrier, the manager of the Good Samaritan Canada Christenson Village in Gibsons around 4:20 p.m. Tuesday evening.

Police say the gunplay erupted when four employees came to the door of Howe's room at the facility to try to evict her over a potential fire hazard.

Perrier suffered gunshot wounds to the stomach and arm.

"As two employees fled outside she followed... shooting once in their direction... nearly hitting them," said RCMP Asst. Superintendent Peter German at a press conference Wednesday.

Mounties shot her after she commandeered a car in the parking lot and ignored repeated commands from police to drop her weapon.

Both Howe and Perrier were airlifted to hospital in Vancouver where they are listed in serious but stable condition.

Police later confirmed Howe had a handgun, which was recovered at the scene along with a long-barreled shotgun.

Howe's father says she is a former soldier with the Canadian Armed Forces who served in the early 1990s. He added that he knew she owned guns but wasn't sure if she kept them at the home.

"I don't know if she had them with her or she put them into a safety deposit box or something."

Howe's relationship with the manager had been bad when she first moved in, her father said, but that had turned around when she began doing odd jobs at the facility.

"She's real handy. She started fixing things for the other residents," he said. "He got to like her."

Her father says Howe had a "hang-up with junk" that prompted her eviction to another facility and her room was often so cramped it was nearly impossible to move around.

"They told her to clean it up a couple of times but I guess it wasn't good enough," he said. "They were just empty boxes with nothing in the damn things but I think it made her feel closed in or better or something."

He says he was shocked by yesterday's shooting, but admits she has never been the same since the car accident.

"I've never seen her violent or anything like that. For her to do anything now it takes her two to three times as long because she's got to get trying to get it into her head, before she could do it just like nothing."

Up to 50 people will be involved in the investigation into the care home shooting, according to RCMP Major Crimes Investigator Insp. Brendan Fitzpatrick.

Care home officials say there is a procedure in place if they find out a resident has a firearm, but doesn't regularly question about them.

"Just because we ask on admission doesn't mean there couldn't be one at some time," says Carla Gregor, the CEO of the Good Samaritan Society.

Gregor stresses most people residents live very independently with minimal support.

"We don't monitor their movements or search their possessions, and we had no reason to suspect there were firearms present."

Christenson Village is owned by an Edmonton, Alberta company called Good Samaritan. The facility has 60 assisted-living suites, 30 cottage beds, and 50 complex-care beds and is run by the Coastal Health Authority.

The shooting has stunned the tiny town of Gibsons, a coastal fishing village best known as the location for the Beachcombers television show.

"We know how upsetting this must be when something this dramatic happens in their community," said German.

"It just happened to be in Gibsons. It's an isolated incident and does not reflect on the community in any way and nor should anyone feel unsafe here."

With reports by CTV British Columbia's Leah Hendry, Stephen Smart and Dr. Rhonda Low.