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I use data to power accountability journalism. That means digging through databases and public records to uncover stories about how your identity and zip code can affect the kind of justice you get in Southern California.
As a data reporter, my work spans different beats. I’ve covered the avalanche of outside money in local politics, spiking firearms sales, Los Angeles’ bicycle infrastructure, and police militarization. I helped build a unique database on police shootings in Los Angeles and San Bernardino counties for KPCC’s Officer Involved project.
I attended Macalester College and the UC Berkeley Graduate School of Journalism and got my start in journalism at KFAI Fresh Air Radio in Minneapolis.
Have a question you want me to answer? Ask me below.
Stories by Aaron Mendelson
Data portals have sprung up across Southern California, and could expand further if bills in the California legislature pass this session. So how much do they cost?
The Los Angeles Police Department has killed 10 people so far in 2015, more people than any other agency in the nation.
Employees at L.A.'s transportation department maintained "nearly super-human work schedules" and claimed overtime at rates higher than any other department except the LAFD.
President Obama signed an executive order this week halting the transfer of certain military equipment to police agencies. How much of it is in So Cal?
Political action committee spending in this year's Los Angeles Unified election is 15 times higher than it was 2009. Many donors aren't disclosed ahead of elections.
Residents of higher-income areas in Southern California used more water in March than their lower income neighbors, a KPCC analysis found.
Many eyes have turned to the manicured lawns, swimming pools and fountains in wealthy communities, with the assumption that wealthy Californians use more than their share of the state's water. So do they?
The California legislature is considering a trio of bills that would crack open the state's vast amounts of public data.
The city's bike network has been growing at a rapid clip for a decade, according to data the Los Angeles Department of Transportation provided KPCC. But gaps remain.
About 70 percent of fans won't be able to catch a game on their TV this season, so some are tuning in at sports bars or restaurants.
Despite years of effort to make streets safe for bicycles, Los Angeles still doesn't have an interconnected bike grid—at least not yet.
Each UC campus has a version of a siren used in the Iraq war that can harm hearing in just a few seconds. UCLA has used it repeatedly for crowd control.
The latest U.S. Census data show Los Angeles remains the nation's most populous county by far, with more than a quarter of Californians living there.
West Hollywood launched a million dollar safety campaign last October to make streets more safe for walkers. Early numbers show the quirky direction may be working.
Downtown Los Angeles has seen a lot of growth, but not when it comes to job growth. In 2011, only 7 percent of the region's jobs were in the city center.