Police have taken more than 200 guns from the Long Island home of the guy who is charged with killing three women.
The 59-year-old Rex Heuermann has entered a not-guilty plea in the deaths of Megan Waterman, Amber Costello, and Melissa Barthelemy.
Police in Las Vegas are also looking into Mr. Heuermann’s ties to the city.
Also Read: Did Rex Heuermann, Gilgo Beach serial killer, have female accomplice?
The Las Vegas Review-Journal reports that Mr. Heuermann purchased a timeshare west of the Las Vegas Strip in 2005.
Police in Las Vegas stated that they are “currently reviewing our unsolved cases to see if he has any involvement”.
In addition to the 200 to 300 firearms found in a locked vault at the residence, officials also took a portrait of a woman with a battered face, according to New York Post reporters.
Suffolk County Police Commissioner Rodney Harrison told Fox News in an interview on Monday: “He had an arsenal in a vault that he had downstairs.”
“Anytime somebody has that type of arsenal we have some concerns,” he added.
Mr Harrison told CNN that family members of the suspect – a married father-of-two – are reeling from the charges.
“They were disgusted,” he said. “They were embarrassed.”
On the South Shore of Long Island’s Gilgo Beach, three women’s remains were discovered near together in 2010. The suspect is accused of killing all three of them.
Investigators have stated that they anticipate charging him with the murder of Maureen Brainard-Barnes, a fourth lady.
The Gilgo Four were among 11 sets of human remains discovered on the shore, 50 miles (80 km) east of New York City.
According to a law enforcement source who spoke to CNN, the suspect questioned the employees at the jail where he was being processed after being taken into custody last Thursday: “Is it in the news?”
The arrest of the suspect, who is the owner of a Manhattan architecture firm, stunned the suspect’s neighbours and inhabitants of Long Island.
Investigators were able to charge him using mobile phone records, DNA evidence from a pizza, and a description of the murderer and his vehicle after years of little progress in the cold case.
