As I saw mentioned elsewhere on the net, it's pretty surprising that those who found JOK first (KR, KR, JMc) and then the first responders, all doing some form of CPR on JOK, no one mentioned kneeling on or being cut by sharp pieces of plastic or glass that were later found scattered all around the area JOK was found. 45+ pieces of plastic, big shards of glass and no one saw or felt a single piece.