VERO BEACH, Fla. -- The Indian River County Sheriff's Office says they've found a key clue in finding a missing person who hasn't been seen in 20 days.
60-year-old Thomas Hoffman hasn't been seen since February 5.
Hoffman's father, also named Thomas Hoffman, says it's been weeks since he had a call from his son. They typically talk on a regular basis.
"Very frequently I'll tell him I love him or he would have told me," Hoffman explained.
On February 5, Hoffman says he and a driver from the nursing home where he lives took his son to a local Howard Johnson Hotel for one night.
Hoffman says his son had just been released from a behavior center at a local hospital and did not want to go back home.
"In the morning, I didn't hear from him which didn't surprise me," Hoffman said.
But after two days, he became concerned and contacted law enforcement.
Investigators say they now have a big clue as to who may know where he is.
Surveillance video taken from a Wells Fargo Bank about six miles from the hotel shows a man about Hoffman's age withdrawing money from Hoffman's account. Indian River County Sheriff Deryl Loar, says the man withdrew $100, and knew the pin number.
There has been no activity on the account since then.
"It's an incredible, incredible clue that we have with the transaction at the bank on Mr. Hoffman's account," said Loar.
Authorities do not know if Hoffman would have given his banking information to someone else, or if the card was stolen.
They don't suspect foul play just yet, but say it is certainly suspicious for him to be unheard from.
"Mr. Hoffman is a 60-year-old man. This isn't a teenager, this isn't a young adolescent, so it's very much a concern of ours," Loar said.
Anyone with any information on who is pictured withdrawing Hoffman's money, or about Hoffman's whereabouts is asked to call Detective Kevin Heinig at 772-978-6121 or the treasure Coast Crime Stoppers at 800-273-TIPS (8477).