recovered the torched car they were using, the duo believed to be on the run, perhaps in disguise, may be armed, and dangerous. this is a complex ongoing investigation involving multiple jurisdictions. reporter: first feared to be missing, the teens are now suspects a week after the bodies of american china diess and her boyfriend lucas fowler were found dead. on a road trip across canada, police say the couple was quietly shot on a quiet highway. none of this will bring my sister back and none will bring lucas back, but we hope they can find who did it. reporter: the bodies of diess and fowler were recovered 300 miles away from another remote canadian road where police discovered an unidentified body. investigators have found two burned out vehicles left by the suspects. they have not released a motive. i hope they get caught and i hope this never happens to
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