20 Years of Chicago Heroin

2002 – 2022. Data Source: data.cityofchicago.org

Data is extracted from the Chicago Police Department’s CLEAR (Citizen Law Enforcement Analysis and Reporting) system.

Twitter and Tesla Employee Political Candidate Donations

Which political candidates received the most amount of money from Twitter and Tesla employees?

A look into Twitter and Tesla employee political candidate contributions. The data comes from Federal Election Commission and covers election cycles 2016, 2018, 2020, and 2022. Click on Tree Maps below for full size.
Box Size = Money
Color = Party (Democrat vs Republican)

Denver Cocaine 2017 – 2022

A look into city and county of Denver’s cocaine criminal offenses. The data is based on the National Incident Based Reporting System (NIBRS). The data is collected by The Denver Police Department, and spans from January 2017 through August 2022. The data source can be accessed at www.denvergov.org. Click on images below for full resolution.

Offense Category of drug-alcohol

Offense Type containing cocaine. (drug-cocaine-possess and drug-cocaine-sell)

Offense Type drug-cocaine-possess vs. drug-cocaine-sell

The Spread of ShotSpotter in Chicago 2017 – 2022

ShotSpotter is gunshot detection technology that uses sophisticated acoustic sensors to detect, locate and alert law enforcement agencies and security personnel about illegal gunfire incidents in real-time. ShotSpotter uses acoustic sensors that are strategically placed in an array of approximately 20 sensors per square mile. These sensors are connected wirelessly to ShotSpotter’s centralized, cloud-based application to reliably detect and accurately triangulate gunshots.

Data is from https://data.cityofchicago.org/Public-Safety/Violence-Reduction-Shotspotter-Alerts/3h7q-7mdb. CARTO was used to create animated map of ShotSpotter alerts.


Chicago ShotSpotter coverage as of 7/17/2022

Chicago Victims of Homicides and Non-Fatal Shootings 2010 – 2022

A look into Chicago’s individual-level homicide and non-fatal shooting victimizations. The dataset was published on the Chicago Data Portal and comes from the Chicago Police Department (CPD). Accessed 7/4/2022. Click on larger visualizations for full size. Carto and Google Charts were used.

12 years of shootings..

Victims by race..

Daily Counts

Aggregates by Month, Day of Week, and Hour of Day. 2010 – 2022..
Summer months accrue the most shootings. Suns out guns out.

Most shootings happen over the weekends.

Night time is the most popular time for a shooting.

Age Group..