New York City is mourning the loss of four people killed in a mass shooting at a midtown Manhattan office building – a police officer, a security guard and two employees who worked at 345 Park Ave.

The tragedy sparked conversations about the change needed to prevent something like this from happening again, especially among those running to lead the city and become the next mayor.

Amanda Bossard spoke to Rep. Ritchie Torres about efforts to pass a federal ban on assault-style weapons, and other actions on the national level to protect the city from another mass shooting.