26-year-old Heather Cummings of Boonville, Missouri pled guilty on Monday to conspiracy to commit murder in the death of her ex-husband 26-year-old David L. Tray Phelps of Hayti.
She was arrested on September 14th, 2015 in Boonvillle.
A Hayti couple, a Caruthersville man and a Portageville man have also been charged in the case.
Phelps was found in the driveway of his home in Hayti.
Pemiscot County authorities say Heather Cummings was unhappy with custody arrangements of their five year old son. Pemiscot County Cummings was sentenced to 15 years in the Department of Corrections.