Watch: Three things you need to know about the mushroom murder trial

In Australia, Erin Patterson is being cross-examined in a murder trial for allegedly poisoning relatives with toxic mushrooms in a beef Wellington dish. Prosecutors presented evidence of Patterson measuring a lethal dose of death caps using kitchen scales on her phone. The victims, Don and Gail Patterson and Gail's sister Heather Wilkinson, fell ill and died after consuming the meal. The trial continues to unfold as prosecutors build their case against Patterson.