has exclusive video of jihadi john. you have not seen this before. coming up, we'll show you this barbar barbaric isis executioner as he's unmasked. ♪ turn around ♪ every now and then i get a little bit hungry ♪ ♪ and there's nothing good around ♪ ♪ turn around, barry ♪ i finally found the right snack ♪ [ female announcer ] fiber one. a man who doesn't stand still. ♪ i finally found the right snack ♪ but jim has afib, atrial fibrillation an irregular heartbeat, not caused by a heart valve problem. that puts jim at a greater risk of stroke. for years, jim's medicine tied him to a monthly trip to the clinic to get his blood tested.