Let me ask you a question: What do you think God thinks of hypocrites - of people who claim to be following Jesus, but in reality aren't? Do you think He was pleased with this person or didn't care what he'd done? No, of course not. In fact, some of Jesus' strongest words were reserved for hypocrites.
This is why I hope you won't use this man's moral failure as an excuse for turning away from Christ. Yes, what he did was tragic and wrong - very wrong. Not only did he hurt himself and his family, but most of all he hurt the cause of Christ. But is every Christian like this? Is it fair (or even honest) to brand all Christians as hypocrites? No, not at all. When we know Christ, He begins to change us from within, and we are no longer what we once were. The same can be true of you.
But the most important thing I can tell you is this: Look at Christ for your example, not just at His followers. Others may disappoint you; even the most devout Christian isn't perfect. But Christ is perfect - and He will never disappoint you.
The Bible says, "Let us throw off everything that hinders and the sin that so easily entangles.... Let us fix our eyes on Jesus, the author and perfecter of our faith" (Hebrews 12:1-2). Be honest about your own need for God's forgiveness, and commit your life to Christ wholly and completely.