His father was a Czech immigrant who worked as a Central Illinois coal miner and also owned a tavern, ice cream parlor, and soda distributorship.

[4][5] Miglin trained as an air cadet during World War II, before attending the University of Illinois.

[3] Miglin began his professional career selling silverware door-to-door and pancake batter out of the trunk of his car.

[6] One of the projects he was involved in was the development of the first two of the three towers at the President's Plaza office complex near Chicago's O'Hare International Airport.

[3] Miglin formed a successful real estate development partnership with J. Paul Beitler, who had also worked at Rubloff & Co.

[7][10][11] In the late-1980s, they built a Helmut Jahn-designed building in Chicago that housed the headquarters of Chocolat Suchard's United States division.

However, few Buick dealerships agreed to sport Bitter signage, which resulted in low sales that doomed the venture.

[5] Klecka, a successful entrepreneur known as the Queen of Makeovers, established a prominent perfume and cosmetics company and appeared[20] on the Home Shopping Network.

[5] In the late 1970s, Miglin joined his wife in conducting an independent two-year study of perfume when she was first considering launching her own fragrance line.

[22][19][23] Cunanan was already wanted in Minneapolis for murdering his friend Jeffrey Trail and his own ex-lover David Madson a few days earlier.

[18][25] The second season of the anthology television series American Crime Story (titled The Assassination of Gianni Versace), recounted the Cunanan spree.