Man confesses to cold case murder: "A serial killer who's only killed once"

Stephan Smerk, a married father in Niskayuna, New York, turns himself in for the cold case murder of artist and mother Robin Lawrence in Springfield, Virginia.

source https://www.cbsnews.com/news/stephen-smerk-new-york-robin-warr-lawrence-murder-virginia-cold-case-48-hours/