I believe that statistics show that 90% of victims of serial killers are dead within 24 hours. I cannot find links for this as it just based on what I learned long ago. In any event the slime was so bold and a risk taker that I doubt he would have planned based on traffic or on anyone else's plans except for his own twisted needs and desires.
Lion
I was looking on AMW's site under the missing section and about 90% have been recovered 'deceased'. Sickening!!
On another note, I think that he has probably been inside that house before since the door is always kept unlocked. He probably scoped out that house on many different nights. They should check their bedroom doors to see if anyone tried breaking in.
Any responses to my theory as to why there is a ditch there? Did LE remove some off the dirt for evidence. If not, it looks a little suspicious.