76-Year-Old Wife Arrested For Fatally Shooting Terminally Ill Husband In A Botched Murder-Suicide Plan.

On Saturday, a woman fatally shot her terminally sick husband inside a Florida hospital. She then locked herself in his room for four hours before finally giving herself up, according to Daytona Beach investigators.

According to police spokeswoman Carrie McCallister, Ellen Gilland, 76, informed authorities that she and her 77-year-old husband Jerry Gilland had planned the shooting together since Jerry had been ill for some time.

She shot her husband at around 11:30 a.m. and resisted being seen outside until 3:30 p.m., according to McCallister. Ellen Gilland did not harm herself and no one else was hurt. Some doctors, nurses, and other staff members took cover in closed closets and rooms as part of the hospital's evacuation.

According to inmate records, Gilland is accused with three counts of aggravated assault with a deadly weapon and one count of first-degree premeditated murder.

"She never put the gun down, so she never specifically made a threat that she was going to shoot any of us, but she never put the gun down," Young said. "So we would have to assume that, you know, if we were to rush in there, we didn't effectively communicate that it could have turned into a shootout situation."

"Units arrived on scene to find that a female had shot her terminally ill husband and had confined herself to his room," said a police release.

Daytona Police Chief Jakari Young said that police utilized a "flash bang" device to first divert Gilland and then catch her. At around 3 p.m. local time, she was arrested.

"It's called a flash bang that the SWAT team uses," Young added, reported WESH. "They use it. It just makes a loud noise it's like a — pretty sure you're familiar with that. So they flew in a flash bang to distract her and luckily it worked."

"Apparently, because he was terminally ill, they had a conversation about it, and they actually planned this approximately three weeks ago that if he continued to take a turn for the worst that he wanted her to end this," Young said. "Obviously, we're unsure how she brought that gun into the hospital, but this was planned."

According to the police, the spouse was supposed to carry out the shooting, but he was too weak.

"It's a tough situation, so her husband (was) terminally ill, so she was already in a depressed state just based on her husband being terminally ill and knowing that the end was near," Young said.

AdventHealth released a statement Saturday afternoon on the shooting:

"We are devastated by the tragedy that unfolded at the AdventHealth Daytona Beach campus today, and our prayers are with those impacted. We are grateful for the Daytona Beach Police Department in helping ensure the safety of our patients, team members and visitors."