Roger Berry, 57, and his passenger Dorothy Schleigh, 24, were pronounced dead at the scene. Kozub was flown to Cooper Hospital-University Medical Center in Camden.
Kozub, who remains hospitalized, was charged with two counts of aggravated manslaughter and two counts of death by auto, Sholinsky said.
He also will be issued summonses for driving while intoxicated, possessing an open container of alcohol in his car, and reckless driving.
Investigators are asking that a man who saw the crash and spoke with the owner of the Hogbins Nursery about it get in touch with detectives at the Prosecutor's Office or township police.
In Deptford Township, a car crashed into a house early last Saturday. A Sewell man who was a passenger in the car died Wednesday of injuries he received in the accident, Sholinsky said.
Charles Taylor Jr., 18, of Deptford, was driving his 2000 Pontiac Grand Am north on Hurffville Road shortly before 2 a.m. when the car careened off the road at the intersection with Summit Avenue.
The car plowed into a house through a bedroom wall and struck a bed where a couple were sleeping.
Taylor and his passenger, Angel Martinez, 21, were taken to Cooper, where Martinez died Wednesday, Sholinsky said.
Adam Lopane, 31, and Christine McCauly, 32, who were jolted awake in their bed, were treated for injuries at Cooper and later released.
Bail for Taylor, who remains hospitalized, was set at $250,000 after he was charged with first-degree aggravated manslaughter, two counts of aggravated assault and death by auto. He was also issued summonses for driving while intoxicated, reckless driving and being an underage driver under the influence of alcohol, Sholinsky said.
Contact staff writer Sam Wood at 856-779-3838 or at samwood@phillynews.com.