Karen Read’s second murder trial was a rematch for the lawyers after the first ended in a hung jury last year. CNN correspondent Jean Casarez answers key questions about the case after Read was acquitted of murder Wednesday.

The duelling narratives of a scorned lover and a police cover-up "blends every dopamine trigger", says one expert.

Karen Read was found not guilty of murdering her boyfriend, Boston police officer John O’Keefe. Here's everything to know about what Karen Read has said about denying that she murdered her boyfriend,