[UPDATE BELOW] The man whose mangled body parts rained down onto an Astoria street yesterday after witnesses say he jumped in front of a northbound N train has been identified. He was 31-year-old Astoria resident William Olbrys, according to an NYPD spokesman.

Olbrys left no note, but witnesses told the Daily News that he was careful to remove his wallet before he jumped from the Broadway platform around 4:30 p.m.

Marc Plotkin, a co-founder of the company DecisionDesk, confirms that Olbrys was an employee at the company. "We're deeply saddened by the loss," Plotkin said. "We had no idea this was coming, and our thoughts are with his family." Olbrys wrote code for DecisionDesk, which helps companies and universities streamline their interview process.

On his Twitter profile, Olbrys described himself as an "Adorable Cat Owner. International Love Affair. The Taste of a Generation. His final Tweet was posted at 3:58 p.m., approximately 30 minutes before he was killed by the northbound N train. The tweet, which reads, "Video: its time to pay the price," is a link to a post on his website.

That final post on his website consists of only this video:

If someone you know exhibits warning signs of suicide: do not leave the person alone, remove any firearms, alcohol, drugs or sharp objects that could be used in a suicide attempt, and call the U.S. National Suicide Prevention Lifeline at 800-273-TALK (8255) or take the person to an emergency room or seek help from a medical or mental health professional.