The San Francisco Zoo announced Friday that its 19-year-old squirrel monkey Banana Sam passed away Thursday.
The monkey became a worldwide sensation after someone broke into the the zoo on the night of Dec. 30, 2011, cut a hole in the monkeys' enclosure and stole Banana Sam.
A $5,000 reward was offered in the case, which drew international attention, even spawning a Twitter account. Banana Sam was recovered a day later on New Year's Eve in Stern Grove. A man said he had lured the squirrel monkey into a backpack.
There has yet to be any arrest made in the case, San Francisco police said Friday.
"Banana Sam was a beloved member of the San Francisco Zoo and he will be missed by staff, volunteers, and visitors," the zoo said in a statement.
Banana Sam was one of 20 monkeys that were brought to the San Francisco Zoo in 2010 after the funding for a local research program ended, according to the zoo.
Bay City News contributed to this report.