I fell into journalism in 2006 with a story that started as a simple assignment about a local charter school opening for The Miami Herald’s Neighbors section, and turned into something more.

In the ensuing years, I got drafted onto the Herald’s investigative team, where I worked on three major projects: Borrower’s Betrayed, about the subprime mortgage crisis; Key’s to the Kingdom, about Allen Stanford’s Ponzi scheme; and Neglected to Death, about Florida’s failure to protect its elderly and disabled.

I joined The Wall Street Journal in 2011, where I’ve worked on a range of stories and projects, including Accounting for Terror, a series about terror financing; Putin’s Power, a project looking at the Russian president’s inner circle; and Inside TikTok’s Dangerously Addictive Algorithm, where we reverse-engineered the popular social media app’s algorithm using a tower of Raspberry Pi minicomputers and a swath of AI and machine-learning techniques.

In 2015, armed with a trove of billions of previously confidential billing records, we used statistical analyses and shoe-leather reporting to unravel millions of dollars in Medicare fraud. The project, Medicare Unmasked, won the 2015 Pulitzer Prize for Investigative Reporting.