A 37-year-old man is facing charges after allegedly knifing a woman who was walking her dog in Ballston.
The incident happened just after 5 a.m. Wednesday on the 4000 block of Fairfax Drive, about a block from Arlington Central Library.
The man was following the woman, who confronted him, leading to the suspect displaying a knife and stabbing her with it, according to the latest Arlington County Police Department crime report…