Well folks, here he is:

Over the next few months, the Sad Panda has intrigued and fascinated New Yorkers — his short disappearance on Wall Street led a few concerned individuals to put up a missing notice, and his great makeover as Spongebob Squarepants did not go unnoticed. Turns out this Sad Panda is a 62 year old man from Guangzhou, Chen Jialing, who has now lived in the United States for many years. He confides in journalism student Michelle Tay the story of how he became Sad Panda after being forced to leave his former restaurant job.

Read more here.