Developer and New York Mets co-owner Fred Wilpon has been building his real estate empire since the early 1970s. But, as has been widely reported, the fall of Ponzi schemer Bernie Madoff has been wreaking havoc for him. Last month, Madoff said that Wilpon, who was invested in his funds, “knew nothing” about his scam. But Madoff’s victims are going after Wilpon and his partners for millions, and now he’s shopping for new Mets investors. Here’s a look at the trajectory of his career.