STOCKTON — Calaveras authorities arrested a 41-year-old man on Wednesday after a body was discovered inside a burned vehicle outside of Copperopolis.Deputies responded to the report of a vehicle engulfed in flames at about 7:07 a.m. near the intersection of Lower Telegraph Road and Highway 4, the Calaveras County Sheriff’s Office reported.According to the report, the remains of a body were found inside after the blaze had been extinguished.