Donald Trump is making a killing from the recent attempt on his life. Shares in Trump Media and Technology Group, the company behind the ex-president’s Truth Social platform, have surged since a crazed 20-year-old opened fire at a campaign rally in Pennsylvania over the weekend, RadarOnline.com can reveal. The business, which trades on the NASDAQ stock exchange under the ticker symbol DJT — also Trump’s initials — soared as high as $46.27 per share on Monday before dipping back down to close at $40.58. Trump is the majority shareholder, and his 60% stake in the company, worth around $3.8 billi…