Re: This person made $500,000 with gambling and lost it all within 60 seconds!
We can't say anything for these kind of happenings,if that is what menat to happen then it will happen since its all fate.But I never go for gambling again until I spend those rewards in more useful way than in gambling if I win those bets.The luck knocked the wrong person. 
Yes.Gambling is all about luck and once you have made good gains already,i think it's wise enough not to gamble again.Most of the time,our own greediness brings us into a more worst situation.I think in gambling,you really need more self-control and even emotional control so you can still enjoy the profits you made in gambling.