Paul Benes says his 911 call for help during his younger brother's mental health crisis ended in tragedy .

"It was a medical call, and it kept escalating, escalating," he said.

He says Tuesday evening Dallas police came to check on Martin Benes, a local attorney who had been drinking and trying to hurt himself.

Dallas Police Chief Comeaux said during a press conference Wednesday morning that officers were called to a house in the 13800 block of Far Hills Dr. Tuesday around 7:40 p.m., when a man was threatening people in the house and was threatening to harm himself.

"They said, 'can you flick the lights and give us some indication that you're okay,' and he did that," Paul Benes said. "He turned on the porch lights. He flickered them and they basically said, 'this is pretty good, he

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