Drew Walter Peterson (born January 5, 1954) is a former Bolingbrook, Illinois, police sergeant who is suspected of killing his third and fourth wives. The story has received national media attention in the United States. Peterson has repeatedly denied involvement in both cases. On May 7, 2009, Peterson was indicted by a Will County, Illinois, grand jury and charged with the murder of his third wife, Kathleen Savio. Peterson currently resides in the Will County Adult Detention Center in Joliet, Illinois awaiting trial.

In 1972, Drew Peterson graduated from Willowbrook High School in Villa Park, Illinois, where he ran cross country. After high school graduation, Peterson joined the US Army. In 1974, he briefly attended the College of DuPage. Peterson later moved to Falls Church, Virginia, where he trained as a military police officer.

Drew Peterson had a 30-year career as a police officer. He began working with the Bolingbrook Police Department in Illinois in 1977. In 1978, he was assigned to Metropolitan Area Narcotics Squad, and in 1979, he received a "Police Officer of the Year" award from the department.

Larry King (born November 19, 1933) is an American television and radio host whose work has been recognized with awards including two Peabodys and ten Cable ACE Awards. He began as a local Florida journalist and radio interviewer in the 1950s and 1960s and became prominent as an all-night national radio broadcaster starting in 1978. From 1985-2010, he hosted the nightly interview TV program Larry King Live on CNN.

King was born Lawrence Harvey Zeiger in Brooklyn, New York City, to an Austrian immigrant Edward Zeiger, a restaurant owner and defense plant worker, and his wife Jennie Gitlitz, a garment worker, who emigrated from Belarus. King grew up in a religiously observant Jewish home, but in adulthood became an agnostic.

King's father died at 44 of heart disease, and his mother had to go on welfare to support her two sons. His father's death greatly affected King, and he lost interest in school. After graduating from high school, he worked to help support his mother. From an early age, however, he had wanted to go into radio. King is a fan of the Los Angeles Dodgers.

Nancy Ann Grace (born October 23, 1959) is an American legal commentator, television host, television journalist, and former prosecutor. She frequently discusses issues from what she describes as a victims' rights standpoint, with an outspoken style that has won her both praise and condemnation. She is the host of Nancy Grace, a nightly celebrity news and current affairs show on HLN, and she was the host of Court TV's Closing Arguments. She also co-wrote the book Objection! — How High-Priced Defense Attorneys, Celebrity Defendants, and a 24/7 Media Have Hijacked Our Criminal Justice System. She was also the host of Swift Justice with Nancy Grace, a syndicated courtroom reality show on which her replacement, former Clark County District Court Judge Jackie Glass, was announced May 24, 2011, effective at the end of its first season.

Nancy Grace was born in Macon, Georgia, the youngest of three children, to Mac Grace, a freight agent for Southern Railway, and Elizabeth Grace, a payroll clerk for a manufacturing plant. Grace has two older siblings: a brother, Mac Jr., and a sister, Ginny. The members of the Grace family have been longtime members of Macon's Liberty United Methodist Church, where Nancy's mother Elizabeth plays the church organ and her father Mac was once a Sunday School teacher.