Complex sentence: In Atascosa County, 8 men were killed and several hundred horses were stolen by a Comanche and Kiowa party; in addition, the Indian warriors successfully engaged a posse of cowboys and farmers who were attempting to catch them.
Split into simpler sentences: In Atascosa County, 8 men were killed and several hundred horses were stolen by a Comanche and Kiowa party. In addition, the Indian warriors successfully engaged a posse of cowboys and farmers who were attempting to catch them.