Investigators say William Brown, 28. participated in an armed robbery at a home on Crutcher Street last month.
According to police, after setting up a meeting with the victim online, a female escort lured the man to the home.
Once inside, Brown and three other men, armed with a gun and screwdriver, jumped out of a closet and robbed him.
Brown is on parole out of Benton County and is also a registered sex offender.
Last week, officers arrested Timothy Counts, Richard Rodriguez and Melvin Cooper.
All four face aggravated robbery charges.
Counts and Rodriguez also face charges of promoting prostitution.
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