TULSA, Oklahoma - Tulsa Police shot and killed a man who they believe killed his wife and three family pets.

Police said the man came out of his home and started pointing a gun at officers.

The officer who shot the suspect is on mandatory leave while the shooting is being investigated.

Police said it wasn't until after they shot the man, they found his wife dead inside the home. 

"Something snapped in his head something mental, he just lost it I guess," said neighbor Des Jordan.

Jordan lives across the street from where police shot and killed the man. 

She said it's shocking to know he's dead but even more shocking that he's accused of killing his wife first.

"Me and his wife would share recipes together. All of us were really close-knit. But they were really loving," Jordan said.

Neighbors said the elderly man had been walking around holding and shooting a gun. 

Police got to the neighborhood near Charles Page Boulevard and South 49th West Avenue shortly after 1 p.m. Sunday afternoon. By 1:30 p.m., the man was dead.

"The individual is armed with a long gun, he comes outside and pointed the weapon at officers. He's in the street and at some point officers use deadly force," said Ofc. Leland Ashley. 

When police went inside the suspect's home, they found the man's wife dead. 

They also found three dead dogs and one injured dog. 

Based on their initial investigation, the suspect appears to be the one responsible, police said.

Jordan said from her encounters with the suspect, he was a "kind, old man." 

"I could never imagine him doing something like this, he was not that type of person," Jordan said. 

A friend of the victim spoke off camera and said the man had recently been having hallucinations, claiming that someone was following him. 

That friend said the wife had actually planned on taking him to get help soon.

But they also never thought he'd hurt her.

"I'm so sorry, I wish I would have known sooner. Maybe I could have stopped it," Jordan said. 

Police haven't released the names of the suspect or victim. Additional information is expected to be released Monday.