An exit interview with Marty Martinez, Boston's top public health official

Marty Martinez, who has served as Boston's Chief of Health and Human Services under three mayors, is stepping down at the end of the week.

In that time, he has overseen the city's response to an opioid crisis, a global pandemic, and a surge in homelessness and addiction.

We talk with Martinez about his reflections on the last four years, and what he sees as the biggest challenges moving forward.