kidnapping

Fortunately, the kidnapped manager was rescued at a house in a little town called San José del Valle in Nayarit. The kidnappers are shown here:

http://www.eloccidental.com.mx/eloccidental/031103/naci_inter/38naci_inter.asp

so, why did they kidnap this guy? was there a reason, and were any other carlos obriens employees hurt or taken or at risk???