Kato Kaelin, the houseguest who saw O.J. Simpson in the moments before and after two people were murdered in 1994, is from Wisconsin.

Metra says it's adding to its aging fleet, but the previously Amtrak-owned locomotives that Metra bought this year are ranked the lowest of the low by the U.S. Environmental Protection Agency.

A change in the operation on three of Metra’s lines is giving the agency an opportunity to rename all 14 lines, and the public has a chance to weigh in.