2,000 serial killers in US, says man who caught Golden State Killer

About two thousand serial killers are on the loose, hunting for fresh victims all across the country.

That’s the word from California cold-case ace Paul Holes, who nailed notorious Golden State Killer Joseph James DeAngelo in 2016 after a 40-year manhunt.

He believes many more like him are still out there.

“I’ve seen statistics that some two thousand serial killers are operating in the United States today,” writes the acclaimed criminalist in “Unmasked: My Life Solving America’s Cold Cases,” out now, in which he chronicles his career-long pursuit of DeAngelo.

“It’s a rough estimate, for sure, but it’s absolutely a realistic figure,” Holes told The Post.