Man Sexually Assaulted Child Relative Repeatedly: Oswego Police

OSWEGO, IL — A Missouri man was taken into custody Monday, following a months-long investigation by Oswego detectives, on charges that he repeatedly sexually assaulted a child relative, authorities said.

Duane E. Joslin, 74, of Sikeston, Missouri, is charged with three counts of predatory criminal sexual assault, three counts of criminal sexual assault and 15 counts of aggravated criminal sexual abuse, according to police.

Joslin engaged in sexual conduct with a child relative younger than 13 between May and August of 2025, police said, adding the investigation into Joslin’s conduct began after it was reported in September.

A Kendall County judge issued a warrant for his arrest and he was taken into custody by U.S. Marshals at his home in Sikeston and brought to Scott County Jail in Lambert, Missouri, pending extradition, according to police.