Police were investigating complaints against him filed by female co-workers when the incident took place.
When investigators showed up with Kai Cheng at his Delta Ridge home on Parr Vista Court in northwest Raleigh Thursday, few neighbors had noticed until they heard something.
"And we didn't know what it was," Cheng's next door neighbor Noha Alqudwah said. "In like about maybe two minutes we heard a lot of sirens, police sirens going outside."
Alqudwah says the next thing she knew there were dozens of police cars and other emergency vehicles on her street. That's when she looked out her window and saw Cheng in his back yard.
"He was laying on the ground and he was moving," she said. "He was moving ... and there was blood on his head."
She says he was still moving and seemed to be alert when he was wheeled on a stretcher to a waiting ambulance.
Alqudwah says she was shocked to hear police say he shot himself in the head with his own handgun even after an officer TASED him to try to prevent the suicide attempt.
She says she was even more shocked to hear that the husband and father to two daughters died over the weekend.
"I expected for him to be better," Alqudwah said.
So did Raleigh Police, who noted in a press release the day after the incident that at first his injuries were not believed to be life threatening.
But they wouldn't say why they were conducting an investigation at his home and had asked him to go to the detective division for further questioning.
Cheng had worked his way up the corporate ladder at the State Employees Credit Union not long after graduating from NC State in 2002 according to his profile page on LinkedIn -- a professional networking website.
Credit Union officials say they had called Raleigh Police when several female employees filed complaints about the inappropriate behavior of a male co-worker.
"You can think about anything else, but not this," Alqudwah said. "We never, never saw anything inappropriate about him, never. He was a good neighbor."
Alqudwah and some of her neighbors say they still don't understand why allegations of inappropriate conduct would lead to a bizarre suicide on their street.
At this point it isn't clear when, if ever, their questions will be answered. Raleigh Police will only say they are still investigating the underlying case and the suicide.