'Happy Face' killer warns fellow serial killer Rex Heuermann could be 'tossed to the wolves' in prison

This material may not be published, broadcast, rewritten, or redistributed. ©2026 FOX News Network, LLC. All rights reserved. Quotes displayed in real-time or delayed by at least 15 minutes. Market data provided by Factset. Powered and implemented by FactSet Digital Solutions. Legal Statement. Mutual Fund and ETF data provided by LSEG. Rex Heuermann appears in court to plead guilty to seven counts of murder and one additional uncharged killing stemming from the infamous Gilgo Beach murders in Long Island, New York. RIVERHEAD, N.Y. — Keith Jesperson, the "Happy Face" serial killer who has been trading prison letters with Gilgo Beach killer Rex Heuermann, is warning that the hulking former architect could face a reality check when he's shipped upstate this month. Heuermann was sentenced Wednesday to the maximum possible sentence of three consecutive life sentences with no parole, followed by four consecutive sentences of 25 years to life in prison. "I’m responsible," he said in court before he was sentenced. "The words I would say have no meaning." Jesperson said before Heuermann's sentencing that prison will be no "cake walk." BRYAN KOHBERGER TRADED DEATH PENALTY FOR LIFE SENTENCE T