A National City man accused of driving under the influence and killing two people inside a Jeep, sending their vehicle into the Sweetwater River off state Route 54 last weekend, appeared in a Chula Vista courthouse on Thursday.
Douglas Guyton, 61, was charged with two counts of second degree murder and two charges of gross vehicular manslaughter while intoxicated, according to court documents.
Guyton’s charges escalated to murder because this was his fourth time being charged with driving under the influence in the past 14 years…