When Falonda Simpson and her daughter Davonda Washington are found murdered, investigators realise the culprit may be very close to home.

When Patrick De La Cerda is shot and killed on his own doorstep, his fiancé Jessica suggests a jealous ex-boyfriend may be behind the attack.

When Ryan Poston is shot and killed by his on-and-off girlfriend Shayna Hubers, she claims self-defence - but was it really an act of jealous rage?