A man charged with murder after his son was left in a hot car for hours in Paso Robles earlier this year appeared in San Luis Obispo Superior Court on Wednesday for his preliminary hearing.Briant Reyes Estrada is accused of causing the death of his 6-year-old son, David, on Saturday, May 10.In court, Thomas McNutt with the Paso Robles Police Department testified that Reyes Estrada claimed to have checked the car twice that day, left the windows …