Psychopedia maps 970 documented true-crime cases across 25 US cities, each one pinned to the address where it actually happened. Read them anywhere, listen while you walk, or let the app tap you on the shoulder when you are close.
Nothing is gated behind being somewhere. Browse the whole atlas from the couch, or take it out the door.
01
Open the map.
Pick a city, or start where you are. Every pin is a documented case at its real address, colored by kind, from the 1690s to today.
Six kinds of cases, each with its own color and glyph
An era slider from the 1600s to the present
Zoom from the whole country to a single block
219 casesMiami · all eras
02
Open the file.
Each case is a written dossier: what happened, when, exactly where, with archival photographs and the list of sources it was built from. On narrated cases, press play and a documentary voice reads it to you, in English or Spanish.
Quick facts: year, location with a confidence level, intensity
Every source listed, and readable
Narration in both languages, rolling out across the catalog
Exact address, verified4 sources · every fact traces to one
03
Let it find you. Optional.
Turn on proximity alerts and Psychopedia tells you when you walk near a documented scene. You choose the radius, the kinds of cases, quiet hours and a daily limit. The matching happens on your phone; your location never leaves it.
Off until you turn it on
In-app cinematic or push notification, your call
The same scene never repeats within 14 days
Case nearby90 m away
Every case on this map happened exactly there.
West Village, New York. 138 documented cases inside the city limits, pinned to the door.
What is inside
Built like a reference work, not a feed.
No points, no streaks, no autoplay. The cases, where they happened, with their sources.
A map you read like a document.
Six kinds of cases, each with its own color and glyph so they stay apart even if you are color-blind. Slide through eras, filter by city, zoom from the whole country to one block. The pins are the catalog: every droplet is a real case at its recorded coordinates.
HomicideSerialOrganized crimeUnrestUnsolvedHeists
A whisper when you are near.
Proximity alerts, entirely on your terms.
Trigger radius100 m to 2 km
CategoriesYou choose
Quiet hoursYes
Daily limitYes
Your locationStays on the phone
Written from the record.
Dates, an address with a confidence level (exact, block, or area), archival photography with its license, and every source listed by name. Read the list yourself.
Two voices, one per language.
A documentary narrator for English, another for Spanish, the same two voices across the whole catalog. Narration is rolling out case by case, the most-visited scenes first. Put your headphones on and walk the block while it reads.
Search the way you remember.
A name, a neighborhood, a drug, a year. Search reads the full text of every case in both languages, so “Little Havana” finds what happened there, not just what was titled after it.
From the pin to the door.
The walking route from where you stand to the scene, with distance and time, or hand it to Maps and go.
You set the level.
Hide victim surnames. Reduce graphic detail. Sensitive images stay behind a deliberate tap, always, on every screen including alerts.
Keep the ones that stay with you.
Bookmark a case to come back to it later. Your saved list lives on your phone, no account required.
Bilingual, natively.
Every case in English and in Spanish, edited for a Latin American reader rather than machine-translated. Switch the language once and the whole catalog follows: titles, dossiers, search, alerts and narration.
Know one we are missing?
Send it from the app. An editor reads every suggestion and checks it against public records before anything is published.
Sometimes the address is a hallway.
Cases are pinned to where they happened: a corner, a lobby, a bar, the street you live on.
25 cities
From Salem in 1692 to Miami last decade.
Three cities carry the deepest catalogs. The rest are the places a single famous case pulls people across the country to see.
Miami 219Los Angeles 174New York 138Chicago 93Seattle 70New Orleans 52San Francisco 38Washington, DC 38Las Vegas 36Philadelphia 34Boston 32Denver 6Cleveland 5Detroit 5Orlando 5Austin 4Dallas 4Milwaukee 4Savannah 3Fall River 2Gainesville 2Salem 2St. Louis 2Tombstone 1Villisca 1
From the files
Eight of the 970.
Each one opens into a written account, its sources, and the exact spot on the map. Every case reaches you with a picture: an archival photograph where one exists, a map of the exact coordinates where it does not.
37 resultsfor “Ocean”, full text
Unrest
The Salem witch trials
1692 · Salem, Massachusetts
Homicide
The assassination of Abraham Lincoln
1865 · Ford’s Theatre, Washington, DC
Unsolved
The Villisca axe murders
1912 · Villisca, Iowa
Organized crime
The St. Valentine’s Day Massacre
1929 · North Clark Street, Chicago
Homicide
The Black Dahlia
1947 · Leimert Park, Los Angeles
Serial
The Zodiac’s last confirmed victim
1969 · Presidio Heights, San Francisco
Organized crime
The Mutiny Hotel, clubhouse of the Cocaine Cowboys
1979 · Coconut Grove, Miami
Heist
The Gardner Museum heist
1990 · The Fenway, Boston
Standards
The rules this was built to.
Every fact traces to a source.Each case carries the archives, court records and reporting it was written from, and you can read that list yourself.
No gore, ever.Victims are treated as people, not spectacle. Graphic or sensitive images stay hidden behind a deliberate tap.
Presumption of innocence.Recent cases stick to publicly reported facts, and anyone not convicted is named only as alleged.
Corrections are welcome.If something is wrong, or you are connected to a case and want it reviewed, the request reaches us in three taps.
Spanish is native, not a patch.Every case is written in English and Spanish, because true crime in Spanish is badly underserved.
Free, with nothing attached.No ads, no purchases, no points, no streaks. Nothing is gated behind standing in a particular place.
Get the app
Free. No ads. No account.
Psychopedia is in testing on iOS, with Android to follow. Download it, pick a city, and walk out the door.