A 52-year-old man died in a suspected homicide on San Francisco's Market Street late Wednesday night, police said.
Bart Kylstra, CEO of Rio Mobility, a company that makes electric accessories for wheel chairs, was allegedly killed inside his office apartment.
The homicide was reported at about 11:30 p.m. in the 1000 block of Market Street after a co-worker of Kylstra reported him missing.
Upon arrival to his place of work, they found him dead.
"That's unsettling too right next door not a great neighborhood but never had anything like that here," said neighbor Ron Rosen. "Three police cars and ambulance down there I didn't hear anything at all."
Police did not release any information about how Kylstra died but they did arrest an employee of his Thursday night.
A source close to the investigation said a Rio Mobillity employee allegedly tased and then beat the CEO to death after Kylstra accused the worker of embezzling $100,000.
People who live in his SOMA apartment complex say they are stunned a neighbor who was always happy to help is gone.
A friend says Kylstra was an engineer and problem solver who saw a need to improve the lives of people who use wheelchairs and dedicated himself to getting the company off the ground.