(St. Paul, MN) -- A 51-year-old undocumented immigrant without a driver's license has been convicted of criminal vehicular homicide for running over a teenage girl near Saint Paul's Harding High School last summer and injuring her 17-year-old boyfriend. Killed was 16-year-old Clarisse Grime. The Star Tribune reports the judge rejected Carlos Viveros-Colorado's (vee-VAIR-ohs coe-loe-RAH-doze) defense that his leg went numb and his foot fell on the accelerator. The judge said Viveros-Colorado was driving without a valid Minnesota license, knowing he had experienced numbness on at least two prior occasions -- plus on the morning of the accident. The judge added that Viveros-Colorado never attempted to slow down or stop as his vehicle crashed over multiple curbs, sheared off a fire hydrant and finally struck the girl and her boyfriend. He faces at least four years in prison and will then be deported.