Mark Alan Smith, 75, Danville Correctional Center

A confessed serial killer serving 500 years in prison due to several murders in northwest Illinois including two in McHenry is expected to appear before the Illinois Prisoner Review Board in July.

Mark Alan Smith, 75, is due to appear before the prisoner review board on July 3 to seek release from the Danville Correctional Center.

He is currently serving a total of 400 years for two murders in McHenry and another 100 years for a murder in Cook County, prisoner records show.

Smith has been in prison since 1971 after pleading guilty to killing and raping 27-year-old Jean Bianchi and 17-year-old Jean Anne Lingenfelter, both of McHenry. He is also facing a life sentence in Arkansas for a murder there, records show.

According to murderpedia.org, Bianchi, a mother of two, was brutally stabbed 17 times after she never returned home from the laundromat.

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Lingenfelter, a McHenry West High School student, was found strangled after disappearing following a study session at a friend’s house.

Smith has also confessed to nine other murders from 1966 through 1970.