Police are investigating a drive-by shooting at the home a key witness in the probe into the murder of Anti-Gang Unit detective Charl Kinnear. An unknown gunman reportedly drew up alongside Bradley Goldblatt’s home in Highlands North, Johannesburg, before firing several shots late last night. No injuries have been reported in the incident. The car parked outside was riddled with bullets. Goldblatt is an ex-police officer and operated a company called 1Track Solutions, which sold access to shadowy cellphone tracking technology, which was used to track Kinnear’s movements.