Saturday Night '48 Hours' on Jan. 27, 2024 at 10/9 p.m.

"48 Hours" (CBS). The hunt for Kaitlin Armstrong after she murders cyclist and flees to Costa Rica."

"Reed Cowan speaks with "48 Hours" Correspondent Jonathan Vigliotti on the international death of up-and-coming professional Cyclist Moriah Wilson and how U.S. Marshals were able to find Kaitlin Armstrong."