Abby Sletten charged with assault after she struck car while using her phone . Sletten is accused of driving 85 mph on a North Dakota highway May 27 while using her cellphone when her car rear-ended an SUV . Phyllis Gordon , 24 , was killed in the May 27 collision on a North Dakota highway . Police said Sletten was viewing Facebook messages at time of accident .
Abby Sletten charged with assault after she struck car while using her phone . Phyllis Gordon , 24 , was killed in the May 27 collision on a North Dakota highway . Police said Sletten was viewing Facebook messages at time of accident .