Mushroom killer must stay in jail forever for 'truly dreadful' crime, appeal court told

Prosecutors say Erin Patterson's sentence was "manifestly inadequate" as it allows for the possibility of parole.

Australian mushroom killer Erin Patterson's lawyers said Wednesday the jury was not properly sequestered in her trial as they sought to overturn her conviction in a triple-murder case that sparked a worldwide media frenzy. The 51-year-old was found guilty last year of murdering her husband's parents and an elderly aunt