JMO, a lot of serial killers have great ability to compartmentalize their activities, sports, clubs, relationships, etc. Rex H. had many years to practice.
That said, witnesses have testified that his wife was aware of some of his activities. There's a witness who has signed an affidavit and will testify in court that Rex and his wife were both "swingers", members of a club in Manhattan, not far from Rex's office. There's nothing wrong with that, of course, but taken with all of Rex's other activities at the time, he was engaged in a lot of activities.
Attorney John Ray says a witness claims to have been at Rex Heuermann's house with Karen Vergata, whose body was found on Gilgo Beach.
www.courttv.com
More witnesses came forward in the case against accused Long Island serial killer Rex Heuermann.
www.fox5ny.com