Sherri Papini, the subject of Investigation Discovery's Sherri Papini: Caught in the Lie took issue with her sister Sheila Koester getting close with her ex-husband Keith Papini.

A small plane returning to Phoenix crashed off the coast of San Diego, killing six people on board; deputies revealed new details in the search for a man accused of killing his three daughters; and more.

Six people, including a pilot, were killed in a small plane crash off the San Diego coast on Sunday afternoon, June 8.