Open Navigation
Close Subnav
content
COJ.net > News > Dealer Arrested for Manslaughter After Selling Drugs That Caused Overdose Death
JSO News
Dealer Arrested for Manslaughter After Selling Drugs That Caused Overdose Death
September 07, 2026
A drug dealer was arrested for supplying the drugs that led to someone’s overdose death.


The investigation began in November, after a 61-year-old man passed away from an overdose. Over a nine-month period, the Jacksonville Sheriff's Office (JSO) Overdose Investigations Unit worked tirelessly to identify who supplied the victim with the drugs. Detectives named 44-year-old Sean Coss as the suspect.

On Thursday, August 20, 2026, detectives with JSO's Overdose Investigations Unit conducted a search warrant on Coss’ home in the Deerwood area. Detectives found 28.8 grams of Powder Cocaine, 19.3 grams of Crack Cocaine, and 875.3 grams of Marijuana. Additionally, detectives found four handguns and $1,565 in cash.

Coss was arrested for Manslaughter as well as several different drug possession charges.

Photo Caption: Drug Bust: Dealer Arrested for Manslaughter After Selling Drugs That Caused Overdose Death. To report suspicious activity in your community to police, police call 904.630.0500. [IMAGE: Top row: booking photo for Sean Coss, 44. Bottom row: Evidence photo, JSO logo]
Share On Twitter Share On Facebook
Video Player Window
Close
Exit Youtube Player
Gallery Window Popup
Close Previous
Next
Exit Photo Gallery
Close Search
Search Results Close Search

/Neighborhood/ConnectDuval.aspx 7/18/2023 1:12:24 PM
Your Resources In an effort to reduce the false alarm rate in Jacksonville, a new alarm registration program was implemented in May 2017. One key element in reducing false alarm calls for police comes from having current contact information that alarm users update each year. ...
/Resources/alarm-registration.aspx 10/15/2018 3:40:42 PM
Community Engagement Opportunities You're invited to join members of the Jacksonville Sheriff's Office as we participate in National Night Out. One night, every year, neighbors come together to unite in the fight against crime in their neighborhoods. Events will be held on ...
/Bizforms/National-Night-Out.aspx 10/15/2018 2:26:32 PM
Your Resources R.E.V.A.M.P. Duval is a voluntary identification program that aids in the safe return of individuals that may be endangered, vulnerable or missing with cognitive and memory impairment or sensory disabilities. This program was created in partnership with the ...
/Resources/REVAMP.aspx 1/23/2025 11:31:44 AM

/News/Archived-News/Spring-2025-TPA.aspx 12/13/2024 1:30:53 PM
Your Career Opportunities On Friday, August 21, 2026, from  11 a.m. to 3 p.m. , members from three law enforcement agencies in the region will come together to host the Northeast Florida Multi-Agency Law Enforcement Career Fair . This one-day event at The Avenues, 10300 ...
/Bizforms/Northeast-Florida-Multi-Agency-LE-Career-Fair.aspx 6/7/2024 9:24:58 AM

/News/Archived-News/Spring-2023-TPA.aspx 2/3/2023 10:16:52 AM
Safety Education Classes Presented by the Jacksonville Sheriff's Office and the Florida Sheriffs Association Parents and Guardians, are you concerned about your teenager's safety while driving? Sign your teen up for the FREE Teen Driver Challenge Class . This one-day...
/Bizforms/Teen-Driver-Challenge.aspx 10/15/2018 2:27:07 PM
Community Engagement Opportunities Thank you for your interest in Sheriff's Watch - Business! Business leaders, from small companies to large ones, ask us about ways to help their employees get information about keeping themselves and their families safe. This program allo...
/Bizforms/Sheriff-s-Watch-Business.aspx 4/9/2019 4:20:02 PM
Safety Education Classes Thank you for your interest in JSO's Teen Police Academy, an informative and exciting program for students, ages 14 to 17 years old.     This interactive, hands-on academy, helps provide students with a better understanding of police operations an...
/Bizforms/Teen-Police-Academy.aspx 5/11/2021 9:52:21 AM
Commonly Searched For:
Inmate SearchHistoryRegistrationSheriff
Exit Search, or continue tabbing to go back to the top of the search results. End of Search Results
Access Key Legend
Most browsers support jumping to specific links by pressing access keys on your keyboard. On Windows, you can press ALT + Access Key (Chrome), ALT + Access Key + Enter (Internet Explorer) or ALT + Shift + Access Key (Firefox); on Macintosh, you can press Control + Option + Access Key (Safari, Firefox, and Chrome). All pages on this site use the following access keys:
Access Key 1 : Navigation
Access Key 2 : Page Content
Access Key 3 : Search
Access Key 4 : Footer
Access Key 5 : Site Map Access Key 6 : Access Key Legend Visitors using the JAWS screen reader 8 or above can navigate using the following keystrokes: H to cycle forward through the headings
Shift + H to cycle backwards through the headings
1 to navigate to the next level 1 heading (or a number between 1 and 6 to navigate to the next heading on this level)
Shift + 1 to navigate to the previous level 1 heading (or a number between 1 and 6 to navigate to the previous heading on this level)
Insert + F6 to provide a list of all headings
We are committed to meeting the guidelines set forth by the American with Disabilities Act (ADA), Section 508 of the Rehabilitation Act, and Web Content Accessibility Guidelines (WCAG2). All pages on use structured semantic markup. H1 tags are used for main titles, H2 tags for subtitles. View the City of Jacksonville Americans with Disabilities Act Notice.
End Of Page