As an investigation into the shooting begins, residents say the incident has left them "numb".
An international manhunt for Pankaj Lamba, thought to have fled the UK for India, is ongoing.
A serving officer and four former officers are being investigated over the handling of reports against the businessman.
The teenager is fighting for her life in hospital as the driver, 17, is arrested after the Bolton crash.
Wiltshire Police officers engaged with the man twice in the hours leading up to his death.
A girl taken to hospital with serious injuries is now in a stable condition, police say.
The officers in Maryport were "dealing with a separate incident" at the time, the watchdog says.
The woman and her unborn child died in a crash with a police car in Kidbrooke, south-east London.
The families of Nuria Sajjad and Selena Lau, who died at an end-of-term tea party, say the initial investigation was flawed.
