Bollards that normally protect pedestrians from vehicles were to be replaced as part of the city’s preparations for the Super Bowl next month. The attacker drove his pickup around a police vehicle parked to block traffic from the street he struck.

Bollards that normally protect pedestrians from vehicles were to be replaced as part of the city’s preparations for the Super Bowl next month. The attacker drove his pickup around a police vehicle parked to block traffic from the street he struck.