REED CITY — One of four men charged in an ongoing sexual assault case in Evart has been sentenced to prison.

Keldon Dennis, 25, of Evart, will serve a minimum of 25 years in prison with a maximum of 50 years after pleading guilty to one count of first-degree criminal sexual assault against a person under the age of 13. Following his release, he will be subject to a lifetime of electronic monitoring.

One count of second-degree criminal sexual assault and one count of third-degree criminal sexual assault were dismissed.

According to transcripts from a preliminary hearing in March, three female victims — ages 6, 8 and 9 — testified against Dennis about the assaults they endured while visiting his home. All three girls are relatives of Dennis.

Also mentioned in the transcript is the girls’ “Grandpa Herm.” Herman Bert Elston, 61, of Evart, was arrested earlier this month on five counts of first-degree criminal sexual conduct and five counts of third-degree criminal sexual conduct.

Bryan Hill, 22, also of Evart, was arrested along with Elston. Hill is charged with two counts of first-degree criminal sexual conduct and two counts of third-degree criminal sexual conduct.

Michigan State Police Det. Sgt. Gary Green, who is leading the investigation, told the Pioneer that Dennis, Elston and Hill are all “loosely related” to each other and the victims.

A fourth suspect, 51-year-old Brian Lindsley, previously of Evart, still has not been located by police. Green said the U.S. Marshals Service has taken over the search for Lindsley.