Authorities Say A Lockdown And Large Police Presence At Dobyns Bennett High School Was From An Unconfirmed Report Of Two People In Possession Of A Firearm Seen Walking Near The Campus. With Already High Tensions, After A Threatening Note Was Found On Tuesday, When The School Was Placed On Lockdown Several Students Ran From The Building. Officers Found No Evidence Of Two Armed Individuals, And According To Police No Incidents Took Place On The School Campus. The Kingsport Police Department Will Maintain A Continued Increased Presence At The School Thursday.