Suspicious

Of course, when Walker was still fooling around with Gray, he had already thought of multiple instances in the past few days that had aroused his suspicions and might have caused the situation situated before them. However, since Walker had many enemies, he wasn't able to pinpoint the exact person who might have caused their current predicament. After all, as a pure businessman living in the modern scientific world, he had never encountered any supernatural incidents or people in his whole life until now.

Therefore, the only thing that Walker could do now was to trace back his steps in order to oberserve the overall situation. At least, that is what he will do after he 'released' his pent up sexual frustrations.