Plagued by trauma from combat, Marcus Capone, a former Navy SEAL and father of two, says the powerful psychedelic ibogaine gave him “a second chance at life”From left: Marcus and Amber Capone in Westlake, Texas, in March and a capsule containing ibogaineCredit: Ariana Gomez; Ambio Life SciencesNEED TO KNOWNavy SEAL dad Marcus Capone credits the hallucinogen ibogaine — a powerful, if illegal, psychedelic — with saving his life after years of PTSD…