How Do You Know You Have Carbon Monoxide Leak?

We are still awaiting the official cause of death of a man killed inside a Koreatown apartment building last week. Firefighters rushed to the complex and found high levels of carbon monoxide. The NBC4 I-Team discovered a history of complaints at the building and just learned something surprising about who is responsible when carbon monoxide detectors aren’t working properly. Lolita Lopez reports for the NBC4 news on Friday, March 16, 2018.