Another person is under arrest for a beating at a park in Knox.
19-year-old Samantha Smith, 19, was booked on Friday for her involvement in the assault, which happened Monday night at Wythogan Park.
Our reporting partners at WKVI say a suspect hit a juvenile boy so hard he fell to the ground, hit his head on the cement, and had to be airlifted to a hospital in Indianapolis.
The names of those two people have not been released, because of their age, but the juvenile is under arrest for battery.
Smith is booked on preliminary charges of assisting a criminal.