One in five adults across America suffers from mental illness and an early report about a woman killed Saturday by police suggests she was among them.

She's the latest victim of two officer-involved shootings in a span of three days.

Kirsten Kloppe, 43, was shot dead by San Antonio police after calling for help claiming she was being stalked.

Police say when they arrived she lied about being armed and when they attempted to disarm her, she pointed a pistol at police and an officer fired off a deadly round.

Neighbors say Kloppe had a history of mental illness.

“If those verbal commands are not listened to and the threat is heightened to that officer's safety and the safety to the public, then he has to respond in a proper way in order to save his life or save someone else's life," SAPD Officer Douglas Greene said.

He adds that it’s easy to criticize an officer for their actions when people break down the situation, but at times, officers only have a split second to make a life or death decision.

Greene explains that every Cadet goes through rigorous training to ensure that they can properly handle a situation involving a mentally ill citizen.

"Our cadets are required to go through 40 hours of this training. The state mandates 24 so we try to go above and beyond," Greene said.

Doug Beach with National Alliance on Mental Illness, or NAMI, says the organization works closely with the police force to promote empathy and understanding of what that mentally ill citizen may be feeling.

"One in five people will have a mental health disorder in Bexar County this year,” Beach said. “That is staggering. That’s over 400,000 people in our community."

He explains that more resources are needed to help the mentally ill, who, at times, need to wait six months before they can get help, increasing the chances of an escalated encounter with police.

"I think what we could use are probably more full-time officers on the street who are part of the mental health unit, that would be helpful," Beach said.

Beach says there is a shortage in psychiatrists and getting more resources is no easy task, so he encourages the community to get educated on mental health.

He says if more people learn to recognize mental illnesses or call for help it could reduce potentially dangerous situations.

NAMI also offers free classes to learn about mental illness.