Aaron Mendelson

Data Reporter

Contact Aaron Mendelson

Aaron Mendelson works on KPCC's data journalism and interactive projects.

At KPCC, he has used data to shine a light on the avalanche of outside money in local politics, spiking firearms sales, Los Angeles' bicycle infrastructure, and police militarization. He helped build a unique database on officer-involved shootings in Los Angeles County for KPCC's Officer Involved project.

Aaron holds a master's degree from the UC Berkeley Graduate School of Journalism. Prior to joining KPCC, he worked as a freelancer for Reuters, Marketplace, KQED and Mother Jones. He got his start in journalism at KFAI in Minneapolis.

Aaron grew up in Iowa. An avid music fan, he is the author of the 2012 book "American R&B: Gospel Grooves, Funky Drummers & Soul Power."

Stories by Aaron Mendelson

Officer Involved San Bernardino: How we did it

KPCC and The San Bernardino Sun built a database tracking police shootings in San Bernardino County from 2010 through 2015, providing an unprecedented examination of police shootings in the county.

Spending on LAUSD race shatters records

Outside groups have spent more than $14 million to influence voters. Smaller sums are being raised to sway decisions on a police oversight measure, the only citywide race.

Chart: Truck collisions as share of all collisions — in 55 California counties

Explore are the trends in collisions in 55 of California's 58 counties — each county with a population of at least 10,000. While you can see broad similarities between many counties, each graph tells its own story.

Chart: Truck collisions rise as share of all collisions

As the economy has picked up since 2009, more trucks have been on the roads. That's meant more big truck collisions, which have an outsized cost, both financially and in terms of human life. Not only have their numbers jumped, but the share of all collisions that involve a big truck has been on the rise.

Big rigs, big risks: Truck traffic rising — along with crashes

Last week's crash on the I-5 freeway brought home the high toll of big rig collisions in road damage, traffic delays and human life on Southern California's roadways.

Metro will need more riders to hit bike share goal

Metro drew 130,000 rides on its bike share system from July to March, but it will take more users to hit its mark. Drier spring and summer weather should help.

Map: Trips by station in LA's bike share program

Metro's bike share network logged more than 130,000 trips in its first nine months. Using this map, you can explore the number of trips that started and ended at each of the network's Downtown Los Angeles stations.

How much rain has SoCal received? A lot.

Just how much rain has the region received? Quite a bit: 120 percent of a typical full year, in just six months. That's helped with the drought.

Politics, gun-control anxiety cited for California's record 2016 gun sales

Californians bought guns at a blazing-fast pace in 2016, setting a record for the most guns ever sold in the state, at 1.3 million, according to state data.

Drought-busting rains have another upside: Cleaner air

Particulate matter pollution is typically worse in the winter, but this year's storms have made for one of the clearest winters in years.

LAPD identifies off-duty officer in Anaheim shooting

Officer Kevin Ferguson has been on the force less than four years. Meantime, a KPCC analysis found off-duty officers are more likely to be charged with a crime than on-duty cops.

Measure S campaigns ramp up ahead of March election

If passed, construction developments that exceed LA's current zoning rules would be banned for 2 years. Supporters say it would stop developers from ramming construction into already-packed parts of the city. Opponents say a ban would mean less housing supply and higher rents.

City approves $1.5 million settlement with family of Ezell Ford

The Los Angeles City Council on Wednesday approved a multi-million dollar settlement with the family of Ezell Ford, a 25-year-old shot and killed by LAPD officers in 2014.

LA commission reviews body-cam rules. Other cities' policies vary, KPCC finds.

As the Los Angeles Police Commission considers loosening restrictions on making LAPD officers' body cam videos public, KPCC has found that other cities in L.A. County have varying policies on the matter.

City of LA finalizing settlement in Ezell Ford case

Ford's parents filed a civil lawsuit against the city after the 2014 officer-involved shooting. The dollar amount hasn't been made public. The city council is expected to approve the settlement on Feb. 8.