It's been a tough few days for Witt volunteer firefighters. On Sunday afternoon, they responded to a traumatic injury involving a person struck in a tree in the 300 block of 2nd Street.   They turned to their ladder truck to remove a patient to the care of EMS. A Medivac helicopter landed and transported the patient to the hospital. The WFD responded with 3 apparatus staffed by 21 personnel. No other information on the nature of the incident or the patient's condition has been released.