The fire department is saying that the massive fire that blazed on the 4300 block of North Richmond Street started outside of a building that is owned by a landlord who has racked up hundreds of building code violations on his dozens of properties.

Reset checks in with a reporter who has been covering this story, and a representative from a tenants rights organization about what you should know if you suspect there are safety concerns in your building.

GUESTS: John Bartlett, executive director of the Metropolitan Tenants Organization

Colin Boyle, reporter and photographer for Block Club Chicago