put them in harm's way. even leaving one scout dead. here's john donvan. >> reporter: the motto is first be prepared but first on the list of virtues they memorize is the word trustworthy. >> mentally awake and morally straight. >> reporter: including a 17-year-old boy named michael sclawy-adelman who first went into scouting when he was 8 years old. what do you remember? >> i dropped him off. and that's the last i saw. >> reporter: the last hike was a 20-miler, bordering the florida everglades. high of 92 degrees. his parents say michael was in fit physical condition and determined to do that hike. >> i spoke to him on the phone while they were on their way to the church to be dropped off. and the last thing he said was, i love you. >> reporter: the hikers set off at approximately 9:00 that morning.