Justin Wayne Halstenberg, 35, faces a potential life term in prison when he returns to court for sentencing, officials said.

Auburn Fire initially started 5:19 p.m. May 20 in San Bernardino County. After being active for 39 hours, it has burned 54.2 acres. As of Thursday morning, the fire crew has achieved full containment of the blaze. The fire's cause remains under investigation.