Jenner & Block

Thomas P. Sullivan has handled civil and criminal trial and appellate litigation for more than 55 years.  He has been with the firm since 1954, except for his time as U. S. attorney for the Northern District of Illinois, 1977-81.  He has argued many cases in the Illinois Supreme Court, the U.S. Supreme Court, and many federal Courts of Appeal. He served as co-chair of Illinois Governor George Ryan’s Commission on Capital Punishment (2000-02) and the Illinois General Assembly’s Capital Punishment Reform Study Committee, whose reports recommending sweeping changes to Illinois homicide law and procedure were influential in Governor Ryan’s decision in 2003 to clear Illinois’ death row and  Governor Quinn’s signing the bill abolishing Illinois’ death penalty in 2010.  He has represented many indigent persons in civil and criminal litigation, including prisoners incarcerated at Guantanamo Bay, Cuba.

Mr. Sullivan is a member of the firm’s White Collar Defense and Investigations and Class Action practices.  He serves as an arbitrator in a wide variety of business disputes. He is also a lecturer and author on civil and criminal trial and appellate litigation.