Mary Jo Trokey was a resident of St. Louis Hills, St. Louis, Missouri. ^{[1] [0] [3]}

Mary Jo married Matthew Trokey on January 11, 2014. The couple both had a baby together, Taylor Rose Trokey. ^{[2] [1]}

She is graduate of the University of Missouri where she earned a bachelor’s degree and a master’s degree in social work. ^[2]

On Friday, February 2, 2018, Mary Jo, her husband, and 3-month-old daughter were found deceased in the 6200 block of Kinsey Place at about 3:45 p.m local time. ^{[3] [1] [0]}

Investigators believe Mary Jo was the shooter in the double murder-suicide. ^{[3] [1] [0]}They are also tracking her purchase of a handgun in the days before the shooting, and are investigating mental illness as a possible motive. ^{[3] [1]}