This obsession with the absence of his girlfriend and the escalating jealousy and paranoia makes him unfazed by the crimes he witnesses, which take place in locations all over Seattle (including the Arboretum, Gasworks Park in Wallingford, and the Boeing factory in Renton) on different levels of depravity.
His fixation on his girlfriend's absence, coupled with escalating jealousy and paranoia, renders him indifferent to the crimes he witnesses, which occur in various locations throughout Seattle (including the Arboretum, Gasworks Park in Wallingford, and the Boeing factory in Renton) across a spectrum of depravity.