Kansas City, Missouri – A Missouri man is facing a long list of felony charges after investigators say he sold vehicles on Facebook Marketplace, only to steal the same cars back from unsuspecting buyers days later. Prosecutors allege the scheme targeted multiple victims and resulted in tens of thousands of dollars in losses across the Kansas City area.
According to authorities, Mamadou Diallo, 24, is accused of defrauding at least eight victims out of more than $24,000 through what officials describe as a calculated and repeatable scam.
Incident Overview
The case was announced Tuesday by Melesa Johnson, who confirmed that Diallo has been charged with a total of 14 felony counts. Prosecutors allege that Diallo exploited online vehicle marketplaces to appear as a legitimate private seller before reclaiming the vehicles after the sale.
Authorities say the crimes occurred in Kansas City, Missouri, and involved buyers who believed they were completing lawful, documented vehicle purchases.
Timeline of Events
Between May and June 2025, the Kansas City Police Department received a series of stolen vehicle reports that immediately raised red flags for investigators.
Each report followed a similar timeline:
- Victims purchased a vehicle through Facebook Marketplace
- Transactions were completed in person
- Buyers received titles and bills of sale that appeared legitimate
- Within days, the newly purchased vehicles were reported stolen
Detectives later connected all eight reports to the same seller.
Details From Police and Prosecutors
Investigators allege Diallo used an online alias when advertising vehicles on Facebook Marketplace, masking his real identity from buyers. After the sales were finalized, police say Diallo retained the ability to reclaim the vehicles, leading victims to believe they had been robbed.
Court records show Diallo is charged with:
- Six counts of first-degree tampering with a motor vehicle
- Eight counts of forgery
If convicted on all charges, Diallo could face up to 98 years in prison under Missouri law.
During questioning, police say Diallo denied buying or selling vehicles on the platform, despite evidence tying him to the transactions.
“Each stolen vehicle report showed the same pattern, including the use of an online alias and documentation that initially appeared legitimate,” investigators noted in court filings.
Key Facts at a Glance
- Suspect: Mamadou Diallo, 24
- Location: Kansas City, Missouri
- Victims: At least eight
- Total losses: More than $24,000
- Charges: 14 felony counts
- Potential sentence: Up to 98 years in prison
- Current bond: $30,000 cash-only
Where the Case Stands Now
As of Tuesday morning, Diallo remained in custody on a $30,000 cash-only bond. Jail records also indicate that he has active holds from sheriff’s offices in three other counties, suggesting additional legal exposure beyond the current case.
Court documents further reveal that Diallo was previously charged in 2025 with multiple counts of:
- Tampering with a motor vehicle
- Stealing a motor vehicle
- Aggravated fleeing from police
Those earlier cases are separate from the Facebook Marketplace investigation but were cited by prosecutors during bond proceedings.
Safety and Awareness for Online Car Buyers
Law enforcement officials are reminding residents that online vehicle marketplaces can be exploited by criminals using forged paperwork and false identities. Police recommend:
- Verifying vehicle titles directly with the Department of Motor Vehicles
- Confirming seller identity with a government-issued ID
- Avoiding cash-only transactions when possible
- Meeting at secure, public locations or police-designated exchange zones
Buyers are also encouraged to run VIN checks and confirm ownership records before finalizing any purchase.
Conclusion
The case against Mamadou Diallo highlights the growing risks associated with peer-to-peer vehicle sales conducted online. As the investigation continues, authorities say the charges underscore the importance of due diligence when purchasing vehicles through digital platforms.
If you believe you may have been affected by a similar scheme or have information related to this case, police urge you to contact local law enforcement. Share your experiences in the comments below.
