WEST LINN, Ore. -- More details are emerging in a relationship that ended with the husband killing his wife and then himself in a police department parking lot, officers said.

West Linn Police Chief Speaks About Murder-Suicide

Police still aren't sure what led to the incident Tuesday in the West Linn Police Department parking lot but neighbors have started to fill in some details into the lives of Bill and Lisa McMurtrey.

Many of the neighbors said they were surprised by the incident, but one neighbor had some insight into why the couple may have been having problems.

Although neighbor Dusty Calliham said there was no indication Bill McMurtrey would turn violent, she said he was behind on his mortgage, was having trouble getting construction work and had recently begun drinking again.

But she still can't believe he turned so violent.

"Bill was a cool guy he would go out of his way to help you," Calliham said.

Questions Remain In Murder-Suicide, Police Say

She said the McMurtreys had lived in their home in Damascus since 1996.

But Lisa McMurtrey had been renting a room in a West Linn neighborhood for about a year before the incident that left her dead, neighbors said.

Friends said she loved to work with plants and flowers

"(She was a) nice lady. She liked to sit out in the sun and I walk everyday and we'd say, 'Hi. How are you doing?' She said, I'd like to walk with you sometime," Grace Crary said.

West Linn neighbors say Lisa McMurtrey was quiet and kept to herself.

"It makes me sad that we didn't get to know her better. Maybe we could've helped her," neighbor Dayle McKay said.

How You Can Help Victims Of Domestic Violence

Investigators believe sometime Tuesday afternoon Bill McMurtrey rammed Lisa's car near her home and then followed his wife as she drove straight to the West Linn Police Station where he crashed into his wife's car again and shot her through her passenger side window.

Lisa McMurtrey died only 10 steps from the police department's doors, officers said.