John Sullivan is a senior editor for ProPublica’s Local Reporting Network, where he works with local journalists at partner newsrooms on investigative projects.

Before coming to ProPublica, Sullivan spent more than a decade at The Washington Post, where he was an associate editor for long-term investigations. There, he designed and built a one-of-a-kind practicum in which American University graduate students worked under his mentorship with reporters on the investigative unit.

Sullivan’s students contributed to scores of investigative projects produced by the Post, including two that won the Pulitzer Prize and five others that were finalists.

In addition to running the program, Sullivan wrote stories that investigated fatal shootings by police of people brandishing toy guns, the use of a deadly maneuver by police to end vehicle pursuits and the exploitative business practices in the bodybuilding industry.

Before joining the Post, Sullivan helped lead a team of reporters at The Philadelphia Inquirer that in 2012 won the Pulitzer Prize for public service for stories that exposed school district officials who had failed to intervene in the lives of troubled students and downplayed the violence that disrupted learning. He also was a Pulitzer finalist in 2009 for an Inquirer project that examined how the Environmental Protection Agency had been weakened by political interest.