A Calcasieu Parish Sheriff's Office statement says 22-year-old Logan Kyle was turned over to Army investigators at Fort Polk; 24-year-old Sarah Parker of Lake Charles was arrested on charges including failure to report a homicide; and the 1- and 2-year-old children are in state custody.
Fort Polk spokeswoman Kim Reichsling says Kyle is in custody. She says she cannot release his wife's name until Tuesday because Army regulations require a 24-hour wait after notifying next-of-kin.
The sheriff's office says deputies got a tip about a woman with a dead body in her trunk and stopped Parker's car Sunday night.