Prject: Cold Case

Cold Cases Database

This database consists of unsolved homicides collected from family submissions, law enforcement submissions, and public records. This database is not part of our advocacy and awareness platform but a separate database for information purposes only. 

Please note: This database is not updated regularly due to cost and manpower. A bug occurred during a recent update and reset many of the dates to January 1, 1970.

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25202 cases found.
CCR: Unknown
Date Reported: May 3, 1992
VICTIM DETAILS
Name Larry Costine
Gender Male
Race Caucasian/White
SUSPECT DETAILS
Name Unknown
Offense Murder
Cause Gun/Firearm
Location Unknown
CASE DETAILS
Status Unsolved
Incident Location Polk County
L.E.A Polk County Sheriff's Office, Winter Haven, Florida
Elwin “Larry” Costine was last seen early on the morning of May 3, 1992, when he dropped a friend off after having been to a rodeo the night before. He was last seen with Melissa Jo Sermons, who he was reportedly dating. On May 4, 1992, Costine was found in his residence, murdered. He had been shot several times. At the time he was discovered, there was no sign of Sermons at his residence. Her family learned that she did not return home after leaving with him to attend the rodeo. Foul play is also suspected in Sermons’ disappearance. Anyone with information about this case is encouraged to contact the Polk County Sheriff’s Office Homicide Unit at (863) 298-6379, or send an email to coldcase@polksheriff.org.
CCR: Unknown
Date Reported: December 13, 2010
VICTIM DETAILS
Name Tytus Mitchell
Age 23
Gender Male
Race African American/Black
SUSPECT DETAILS
Name Unknown
Offense Murder
Cause Unknown
Location Unknown
CASE DETAILS
Status Unsolved
Incident Location 5726 S Damen Ave
Chicago, Illinois, 60636
Cook County
L.E.A Chicago Police Department, Chicago, Illinois
This case was gathered through a partnership with The Washington Post. The Post gathered information from 50 large cities in the United States regarding their unsolved murders. View the original article here: https://www.washingtonpost.com/graphics/2018/investigations/where-murders-go-unsolved/?noredirect=on&utm_term=.986316f33dac Anyone with information regarding this case is encouraged to contact the Chicago Police Department at (312) 746-6000.
CCR: Unknown
Date Reported: February 9, 2008
VICTIM DETAILS
Name Alphonso Lawson
Age 38
Gender Male
Race African American/Black
SUSPECT DETAILS
Name Unknown
Offense Murder
Cause Unknown
Location Unknown
CASE DETAILS
Status Unsolved
Incident Location 2400 90th Ave
Oakland, California, 94603
Alameda County
L.E.A Oakland Police Department, Oakland, California
CCR: Unknown
Date Reported: October 18, 2014
VICTIM DETAILS
Name Genorel Martin
Age 24
Gender Male
Race African American/Black
SUSPECT DETAILS
Name Unknown
Offense Murder
Cause Unknown
Location Unknown
CASE DETAILS
Status Unsolved
Incident Location 6732 S Throop St
Chicago, Illinois, 60636
Cook County
L.E.A Chicago Police Department, Chicago, Illinois
This case was gathered through a partnership with The Washington Post. The Post gathered information from 50 large cities in the United States regarding their unsolved murders. View the original article here: https://www.washingtonpost.com/graphics/2018/investigations/where-murders-go-unsolved/?noredirect=on&utm_term=.986316f33dac Anyone with information regarding this case is encouraged to contact the Chicago Police Department at (312) 746-6000.
CCR: Unknown
Date Reported: August 4, 2013
VICTIM DETAILS
Name Kenneth Peete
Age 41
Gender Male
Race African American/Black
SUSPECT DETAILS
Name Unknown
Offense Murder
Cause Unknown
Location Unknown
CASE DETAILS
Status Unsolved
Incident Location 3300 W Outer Dr
Detroit, Michigan, 48221
Wayne County
L.E.A Detroit Police Department, Detroit, Michigan
This case was gathered through a partnership with The Washington Post. The Post gathered information from 50 large cities in the United States regarding their unsolved murders. View the original article here: https://www.washingtonpost.com/graphics/2018/investigations/where-murders-go-unsolved/?noredirect=on&utm_term=.986316f33dac Anyone with information regarding this case is encouraged to contact the Detroit Police Department at (313) 596-1800 .
CCR: Unknown
Date Reported: February 15, 2009
VICTIM DETAILS
Name Milton Andrade
Age 33
Gender Male
Race Hispanic/Latino
SUSPECT DETAILS
Name Unknown
Offense Murder
Cause Unknown
Location Unknown
CASE DETAILS
Status Unsolved
Incident Location 6301 S Richmond St
Chicago, Illinois, 60629
Cook County
L.E.A Chicago Police Department, Chicago, Illinois
This case was gathered through a partnership with The Washington Post. The Post gathered information from 50 large cities in the United States regarding their unsolved murders. View the original article here: https://www.washingtonpost.com/graphics/2018/investigations/where-murders-go-unsolved/?noredirect=on&utm_term=.986316f33dac Anyone with information regarding this case is encouraged to contact the Chicago Police Department at (312) 746-6000.
CCR: 202279
VICTIM DETAILS
Name Linton Walker
Age 32
Gender Male
Race African American/Black
SUSPECT DETAILS
Name Unknown
Offense Murder
Cause Gun/Firearm
Location Unknown
CASE DETAILS
Status Unsolved
Incident Location 5710 Lenox Avenue
Lenox Square Apartments
Jacksonville, Florida, 32205
Duval County
L.E.A Jacksonville Sheriff's Office, Jacksonville, Florida

Anyone with information regarding this case is encouraged to contact the Jacksonville Sheriff's Office at (904) 630-1200.

CCR: Unknown
Date Reported: June 18, 2014
VICTIM DETAILS
Name Alexander Duran
Age 50
Gender Male
Race Hispanic/Latino
SUSPECT DETAILS
Name Unknown
Offense Murder
Cause Unknown
Location Unknown
CASE DETAILS
Status Unsolved
Incident Location 4401 Morrison Rd
Denver, Colorado, 80219
Denver County
L.E.A Denver Police Department, Denver, Colorado
This case was gathered through a partnership with The Washington Post. The Post gathered information from 50 large cities in the United States regarding their unsolved murders. View the original article here: https://www.washingtonpost.com/graphics/2018/investigations/where-murders-go-unsolved/?noredirect=on&utm_term=.986316f33dac Anyone with information regarding this case is encouraged to contact the Denver Police Department at (720) 913-6010.
CCR: Unknown
Date Reported: March 3, 2015
VICTIM DETAILS
Name Kwemon Davis
Age 23
Gender Male
Race African American/Black
SUSPECT DETAILS
Name Unknown
Offense Murder
Cause Unknown
Location Unknown
CASE DETAILS
Status Unsolved
Incident Location N 22nd St
Baton Rouge, Louisiana, 70802
East Baton Rouge Parish
L.E.A Baton Rouge Police Department, Baton Rouge, Louisiana
This case was gathered through a partnership with The Washington Post. The Post gathered information from 50 large cities in the United States regarding their unsolved murders. View the original article here: https://www.washingtonpost.com/graphics/2018/investigations/where-murders-go-unsolved/?noredirect=on&utm_term=.986316f33dac Anyone with information regarding this case is encouraged to contact the Baton Rouge Police Department at 225-389-3802.
CCR: Unknown
Date Reported: January 1, 1970
VICTIM DETAILS
Name Joseph Siczak
Age 24
Gender Male
SUSPECT DETAILS
Name Unknown
Offense Murder
Cause Gun/Firearm
Location Unknown
CASE DETAILS
Status Unsolved
Incident Location 901 Northshore Dr NE
Northshore Park
St. Petersburg, Florida, 33701
Pinellas County
L.E.A St. Petersburg Police Department, St. Petersburg, Florida
Anyone with information regarding this case is encouraged to contact the St. Petersburg Police Department at (727) 893-7179.