TEXARKANA, AR. (KSLA) - Police on the Arkansas side of Texarkana are investigating a double homicide Friday night. KSLA News 12 was first on the scene, at the home on Big Rock Circle where we have learned that a man and a woman, were both found dead with stab wounds. Texarkana Police describe it as a very brutal scene. Right now we know son one of the two people found dead, is in custody at this time. Neighbors tell KSLA News 12, the son is his 20's .