You can now read 10 articles in a month for free on BostonGlobe.com. Read as much as you want anywhere and anytime for just 99¢.

The Boston Globe

Metro

Kevin Cullen

MIT officer always looked out for others

When he was 6 years old, Sean Collier was sitting in a booth at a Papa Gino’s with his mother, Kelley, and his little brother ­Andy, having a pizza.

There was a woman in another booth, alone, and she was crying.

Loading comments...

You have reached the limit of 10 free articles in a month

Stay informed with unlimited access to Boston’s trusted news source.

  • High-quality journalism from the region’s largest newsroom
  • Convenient access across all of your devices
  • Today’s Headlines daily newsletter
  • Subscriber-only access to exclusive offers, events, contests, eBooks, and more
  • Less than 25¢ a week