Complex sentence: Some of Escobar's relatives believe that he had committed suicide, with his two brothers, Roberto Escobar and Fernando Sánchez Arellano, believe that he shot himself through the ear.
Split into simpler sentences: Some of Escobar's relatives believe that he had committed suicide. His two brothers, Roberto Escobar and Fernando Sánchez Arellano, believe that he shot himself through the ear.