According to the San Francisco Chronicle, the case involving Banana Sam is still open. The 17-year old squirrel monkey was taken out of his zoo habitat Thursday night.
On Saturday, a man called police saying he found the monkey in Stern Grove and coaxed him into a backpack. Zoo keepers have said it's doubtful that a squirrel monkey could be anything but forced into a backpack. There had been a $5,000 dollar reward for Banana Sam's safe return.