So as an alternative, he launched his 1st tech corporation, which created him a millionaire by age 28. Then he commenced one more enterprise - and one more - amassing thousands and thousands and then billions of bucks in wealth alongside the way. Hemenway, David. "The Myth of Millions of Annual Self-Defense Gun Uses." Chance. Krouse, William J. "Gun Control Legislation." Congressional Research Service. Koper, Christopher S.