Did a son's lies lead to a Wisconsin couple's murder?

When Bart and Krista Halderson suddenly disappeared in July 2021, their son, Chandler, alerted police. A search of a popular social media app helped lead investigators to a gruesome discovery.

source https://www.cbsnews.com/news/chandler-halderson-wisconsin-double-murder-bart-and-krista-halderson-48-hours/