Lorne Acquin's Tire Iron

Origin
Lorne J. Acquin (1950 - ) is an American mass murderer who killed his foster brother's family. Beating the nine members to death with a tire iron, lug wrench and knife. When he was done he set the house on fire to escape. Jealous of his brother's family he waited until he was at work before attacking and killing his family.

Effects
Jealousy towards family members leading towards familicide