The trial of Matthew David Jensen, 30, has been rescheduled to December.
Frederick Jeffrey Alexander, 16, and Alesha Katherine Roehl, 17, both of Burnsville were killed in the 2012 crash.
The case appears to be an incidence of domestic-related violence, said the Dakota County Attorney.
The teen driver pleaded guilty to four counts of criminal vehicular homicide.
Inver Grove Heights
The West St. Paul man was convicted in July in connection with the 2012 shooting.