Isabelle was the closest way for Wesley to get to Helen. He had been trying to stalk Helen to approach her but the woman always managed to slip out his eyesight. Of course, his brother's girlfriend wouldn't be easy to get to. That was why he had to aim for someone closer to Helen. Just like Isabelle had said, Eli might not be able to resist Helen's wishes.
Wesley smirked and imagined the surprised looks on Helen and Eli's faces when they learned he was the one behind the party. The anticipation could kill him. Wesley rested his hands in his pants pockets walking through the mall thinking of Isabelle. She truly was the perfect pathetic choice.
His three initial options were Isabelle, the Hodge girl, and the hairdresser. Spying on the hairdresser Julie, he noticed she had a harder personality which would take time for her to tell him information about Helen and Eli. Jennifer Hodge would be more useful in the future and coincidentally, the last woman left was gullible.