The incident happened just after 2 p.m. at Liberty Park. The girl was playing in one of the water features. Police say the girl’s mother was standing 10 to 15 feet away.
Police say the man “forcibly grabbed” the girl by the arm.
The 9-year-old screamed and tried to pull herself away. Her mother realized what was happening and approached the man who let the child go and started walking away quickly.
Groeger was arrested for investigation of battery and disturbing the peace.