A college student from Rockville originally believed to have died in a car crash in Pennsylvania in March has been charged in the deaths of two passengers killed in the accident.

Bruce Milzman, 20, was arrested Monday by Pennsylvania State Police at a friend's house in Sunbury, Pa., not far from Susquehanna University, where he is a third-year biology student. He was charged with eight misdemeanors, including two counts of involuntary manslaughter and two counts of homicide with a vehicle. He was released on $30,000 bond. A preliminary hearing before District Justice William Yon was set for Monday in Mifflinburg, Pa.

According to police, Milzman was returning from a fishing trip March 12 with fellow university students Gerald Sibia, 21, of Hazelton, Pa., and Kevin Mitchell, 21, of Toms River, N.J., when his car left the road at high speed, ran down an embankment and crashed into a tree, fatally injuring Sibia and Mitchell.

The identities of Sibia and Milzman were confused after the accident. Union County Coroner James Schwartz, who signed a death certificate for Bruce Milzman after seeing a body later identified as that of Gerald Sibia, said the accident victims were incorrectly registered at the hospital. Milzman, whose face was swathed in bandages, was subsequently misidentified by Sibia's mother as her son.

Milzman's parents, who selected a cemetery plot and made funeral arrangements for their son, discovered the mixup only when Susan Milzman reached into the casket to hold her son's hand and saw that the hair on the corpse was straight. Bruce Milzman's hair is curly.

Joseph B. Milzman, a dental surgeon, then inspected the dead man's teeth and saw that the teeth were not like his son's.