But there's no indication he was ever seen hanging around the playgrounds, picnic areas, etc. where he could watch kids. He was seen on hiking trails.
Every indication is the murders happened on a trail where there was no one else around.
If he really thought he could kill both parents and snatch a child, and run through the woods to his car with her, he was seriosly deluded.
Sadly, the child snatching stories are very familiar: a car drives along a road in an urban/suburban area, draws alongside a child alone on a sidewalk or playground, door opens, child pulled inside, car drives off.
JMO
maybe he's just part of the bold and stupid murderer club.
jmo