Who killed Smaragd?

Trivia

 * Jessie backs on the show with 2 newcomers
 * The motives that Jessie,Jocelyn,Diego,Chloretta and Dash are the suspects to "kill" her
 * Jessie:Due to happened in Dear someone you were hated by others
 * Jocelyn:Due her caught Tessa harassing Julian
 * Diego:Due her ran over in his dog,and almost ran over him
 * Chloretta:Due Tessa caught her driving alcoholically
 * Dash:Due her mocking his family through 10 years
 * The killer was Chloretta
 * But everyone appointed to Jessie to be the killer,causing that no team wins the challenge