This story is free to read.

Ten things to know for Tuesday, Jan. 3

The Brandenburg Gate in Berlin, Germany, is illuminated in the colours of the flag of Turkey on Monday, Jan. 2, 2017 the day after an assailant killed dozens of people in a crowded Istanbul nightclub during New Year's celebrations on Sunday. (AP Photo/Michael Sohn) The Brandenburg Gate in Berlin, Germany, is illuminated in the colours of the flag of Turkey on Monday, Jan. 2, 2017 the day after an assailant killed dozens of people in a crowded Istanbul nightclub during New Year's celebrations on Sunday. (AP Photo/Michael Sohn)

By Associated Press January 2, 2017 2 min read

Your daily look at late-breaking news, upcoming events and the stories that will be talked about Tuesday, Jan. 3:

1. TURKEY HUNTS FOR NIGHTCLUB GUNMAN

The Islamic State militant group says a “soldier of the caliphate” carried out the mass shooting that killed 39 people ringing in the new year in Istanbul.

2. ‘THIS EPIDEMIC HITS EVERYBODY’

Bruce Bandler, a federal prosecutor in Pa. who is fighting the opioid crisis, understands addiction’s toll because he lost his son to heroin.