"Silent Sam," which had stood since 1913, had been the focus of demonstrations in recent years.
Two people wanted for questioning in connection with three murders in Nashville, Tenn., last week were in taken into custody on Monday, authorities said.
The woman's mother said she died trying to protect her dog from the alligator.
Court documents allege that Christopher Lee Watts was having an affair, wanted a separation and claimed his wife killed their young daughters.
The mass shooting as Jason Aldean performed at a country music festival in Las Vegas is now the deadliest such incident in modern American history.