Investigators believe the 'Choker is responsible for at least 17 robberies since January.
Houston police identify suspect dubbed the 'Choker'
HOUSTON
Police released a sketch of the 'Choker' back in September. The suspect, 35-year-old Pius Kissinger Knott, is so far only charged with one count of aggravated assault. Authorities are not releasing his picture until they're finished using him in lineups.