Prosecutors dropped a charge Monday against the owner of a dog killed by a police officer Sept. 2.
Karen Counts faced a fine of up to nearly $1,100 for letting the dog roam unleashed.
No explanation was given for the decision, Police Chief Brian Buck said.
Officer Riley Null shot the unrestrained dog after it charged him while running loose in an Irmo neighborhood. A jogger had alerted police that the dog chased him in a threatening manner.
Some animal lovers are upset at a shooting town officials say was self-defense.