The Sparks Police Department says one man is dead after an argument escalated in Sparks. On Friday, police were called to an apartment on Sullivan Ln. and discovered a 67-year-old man dead from possible gunshot wounds. Investigators determined that the suspect, 19-year-old Brian Rodriguez-Sigala was a guest in the victims apartment when an argument broke out. Police say gunshots were heard and Rodriguez-Sigala was seen running from the apartment. On Saturday, authorities say they found Rodriguez-Sigala in the same area. He was booked for Open Murder and Carrying a Concealed Firearm.