At the end of Taking Lives we see that it was James Costa aka Martin Asher who is the real killer. But by that time this is discovered he has had sex with
push
life-as-we-know-it
ghost-whisperer
a-scanner-darkly
ralph-breaks-the-internet
the-sixth-sense
sweeney-todd
10-cloverfield-lane
the-war-zone
rugrats
superman-quest-for-peace
american-vandal
ww2-in-hd-colour
flight-of-the-intruder
aspect-ratio
eternity-and-a-day
extraterrestrial
side-effects
married-with-children
payback
mtv
the-ultimate-gift
the-score
paranormal-activity
darkman
the-dark-knight
tin-star
the-office-uk
short-films
the-postman-always-rings-twice