Earlier I posted that the only theory I could think of wherein Jayme is not the target was the idea of a 'crime of passion' targeting James/Denise, and simple panic @ Jayme & they took her because she could identify them.
Anyway: there are three other scenarios, all three whackadoodle
Whackadoodle #1) Some have theorized there were debts owed, & other's have rationally pointed out that there is no point in killing James/Denise, because then they'll never recoup their money. Welllll......
Maybe they decide to kill James&Denise and take Jayme - they'll wait until the reward money is where they'd like it then call in that tip, arrange for Jayme to be found, & take the money & ride off into the sunset (like to see them try it, have feeling LE will be all over them)
Whackadoodle #2) Similar in spirit to #1, however this time the plan is to make $$ by kidnapping a kid, keep her safe somewhere, call in the tip, collect the money & run. Maybe there was no intention of killing anyone, nothing went how they planned.
#3) A bunch of whackadoodles methed out, drugged out - decide to rob that quiet family in the secluded house down the street. Once again, nothing happens as they expect, they've killed someone, woman yelling, kid screaming, the dog, they forget why they even went over there, & they take Jayme: because Jayme...no reason, but these people aren't the brightest bulbs on the tree to begin with plus they are possibly methed out
So: there's some ideas....are they likely: nope
Any rational idea I come up with the motive is always Jayme
JMO