Oscar Grant III was a 22-year-old African-American man who was fatally shot Use_firearm in the early morning hours of New Year 's Day 2009 by BART Police Officer Johannes Mehserle in Oakland , California .

The gunman , 22-year-old Jacob Tyler Roberts , ran Self_motion into the shopping center wearing Wearing tactical clothing and a hockey mask and opened fire Use_firearm on shoppers and employees with a stolen Stag Arms AR-15 rifle .

On the evening of , 2014 , in Isla Vista , California , 22-year-old Elliot Rodger killed Killing six people and injured Bodily_harm fourteen others near the campus of University of California , Santa Barbara , before killing Killing himself inside his vehicle .

On 21 December 1817 , the British , led by Sir Thomas Hislop , attacked Attack the Holkar army led by 11-year-old Maharaja Malhar Rao Holkar II , 22-year-old Hari Rao Holkar and 20-year-old Bhima Bai Holkar .

It killed Killing Paul Craig ( a 22-year-old plasterer ) , two members of the Scots Guards and two members of the Women 's Royal Army Corps .

Brown was accompanied by his 22-year-old friend Dorian Johnson .

The dispute erupted Process_start into violence in the Battle of Jumonville Glen in May 1754 , during which Virginia militiamen under the command of 22-year-old George Washington ambushed a French patrol .