[1] He received a Master of Education from Governors State University and a bachelor's degree from Saint Joseph's College.
[7] O'Grady ultimately had failed to live up to his 1986 campaign promises of disposing of politics and corruption in the Cook County Sheriff's Office, and had become unpopular among his constituents.
[8] Amid the 1990 campaign, a Cook County correctional officer was shot and critically wounded while hanging signs for Sheahan outside of the South Side bar.
[8] O'Grady suffered one of biggest defeats that a Republican Party nominee had experienced in a countywide Cook County election in years.
[11] Early into his tenure, he received praise for running what appeared to be a much less corrupt Sheriff's Office than his predecessors had.
[12] Shehan and his wife Nancy have six children, Katie, Michael, Terrence, Timothy, Patrick, and Ryan.
[1] His brother James "Skinny" Sheahan is a civic leader on Chicago's Southwest Side.