A New York Times investigation found that poor work by Mr. Slim’s company led to the fatal accident. Mr. Slim may be willing to help fix it, but it is not clear if he would pay the costs.

Instead, the Times accepted a $250 million, 14% loan in January 2009 from Carlos Slim, a telecommunications mogul who was the richest man in Mexico and, by Forbes’ reckoning, the richest man in ...

Carlos Slim, who was once the world's richest man, previously tried to sell his 20,000-square-foot Fifth Avenue mansion in 2015. ... According to a New York Times report in 1995, ...