Is Jack still saved by the grace of Christ?

If Jack was raised in Alabama by Christian parents, and when he was 28, Jack accepted Jesus as his personal Savior, and then spent 15 years telling people that he is saved, but then he starts researching and reading the bible and wondering about it and then one day he decides to get baptized in the Catholic faith, recieve communion, accept the Holy See, pray to the Virgin and the Saints, and confess his sins to a priest, is he still saved?