Answer this riddle first one gets brainiest
a man was shot to death while in his car. there were no powder marks on his clothing, which indicated that the gunman was outside the car. however, all the windows were up and the doors locked. after a close inspection was made, the only bullet-holes discovered were on the man's body. how was he murdered?

The victim was in a convertible. He was shot when the top was down.

He killed himself?? Or possibly he was killed outside his car, then the killer drug him back into his car and set the scene to his advantage 

That is pretty  

20 times a minute is usually the average respritory rate of an adult. additionally the patient is breathing on his own, is clearly maintaining his airway, and is intaking a sufficient amount of air. you shouldn't use a bag valve mask, cpap, or other form of positive pressure ventilation, unless the patient has lost control of his airway, and is not breathing (apneic) or has rapid breathing or slow and shallow respirations. this patient would most likely and should be put on an non-rebreather mask or nrb attached to 100% high flow oxygen at 15 l/min. don't use a nasal cannula, as the amount of oxygen it provides is limited with a rate of 6 l/min.