The Last Valentine’s Day

Margaret Thompson had been planning the perfect Valentine’s Day surprise for months. The 68-year-old widow from suburban Houston had saved nearly $50,000 from her late husband’s pension, money she intended to use for the romantic getaway to Italy that “David” had been promising her for over a year. They had met on a dating app, and his messages arrived like clockwork every morning, filled with poetry about their future together and gentle requests for help with his “business complications” overseas.

What Margaret didn’t know, as she sat in her kitchen on February 14, 2023, refreshing her bank account and wondering why the latest wire transfer to help David with his “emergency medical bills” hadn’t gone through, was that David didn’t exist. The man behind the carefully crafted messages and stolen photographs was Leslie Chinedu Mba, a 40-year-old Nigerian citizen operating from a modest apartment in Houston’s southwest side, orchestrating what would become one of the largest romance scam conspiracies to hit the Southern District of Texas.

By the time federal agents knocked on Mba’s door eight months later, Margaret Thompson was just one of dozens of victims who had collectively lost over $4 million to his sophisticated web of deception.

The Man Behind the Mask

Leslie Chinedu Mba arrived in the United States with dreams that mirrored those of countless immigrants before him. But by 2018, those dreams had curdled into something far darker. His initial application for permanent residency had been denied, and immigration authorities had ordered his removal from the country. Rather than accept this fate, Mba chose a different path—one that would entangle him in a conspiracy spanning continents and destroying lives.

From his base in Houston, Mba had constructed an intricate criminal enterprise that operated on two fronts. The first was a business email compromise scheme, where he and his overseas collaborators gained unauthorized access to corporate email accounts, redirecting legitimate business payments to fraudulent accounts. The second, more insidious operation targeted the hearts and savings of lonely Americans through romance scams that preyed on the most vulnerable desires for human connection.

Mba’s role in this machinery was crucial but deliberately obscured. He served as what federal prosecutors would later term a “money mule,” operating and controlling multiple bank accounts that served as collection points for fraudulent funds. But he was more than just a conduit—he was an architect of elaborate stories designed to separate victims from their life savings.

The Anatomy of Deception

The mechanics of Mba’s operation were both sophisticated and heartlessly efficient. Working with co-conspirators both inside and outside the United States, the scheme began with overseas operatives who would hack into business email systems, monitoring communications between companies and their vendors or customers. When they identified a pending payment, they would strike, sending carefully crafted emails from compromised accounts that directed funds to be sent to accounts controlled by Mba and his associates.

The romance scam component was even more elaborate in its cruelty. Mba and his co-conspirators created detailed fictional personas, complete with stolen photographs and carefully constructed backstories. These digital phantoms would spend months building relationships with their targets, learning their vulnerabilities, their financial situations, and their deepest desires for companionship.

“David,” Margaret Thompson’s supposed boyfriend, was a composite creation—part successful businessman, part romantic poet, part victim of circumstances always just beyond his control. His messages, crafted by Mba and his associates, arrived with the reliability of a loving partner, each one designed to deepen the emotional investment while gradually introducing financial requests that seemed reasonable in the context of a committed relationship.

The requests always followed a pattern: first small amounts for “unexpected emergencies,” then larger sums for “business opportunities” that would secure their future together, and finally desperate pleas for money to resolve crises that threatened to keep the lovers apart forever. Each wire transfer was directed to accounts that Mba controlled, funds that would quickly disappear into the broader conspiracy before victims could realize they had been deceived.

The Network Unravels

By 2023, the scope of Mba’s operation had grown to include at least four other co-conspirators in the Houston area: Grace Morisho, 30, Rodgers Kadikilo, 30, Kristin Smith, 38, and Alexandra Golovko, 36. Each played a specific role in the conspiracy, operating accounts, communicating with victims, or facilitating the movement of fraudulent funds.

But the network that had operated successfully for nearly five years began to show cracks. Victims were beginning to compare notes through online support groups and fraud reporting websites. Bank security systems were flagging unusual patterns of international transfers. Most significantly, federal investigators from the FBI’s Houston office, working in conjunction with the Houston Police Department, had begun connecting the dots between seemingly unrelated cases of business email compromise and romance fraud.

The investigation that would ultimately bring down Mba’s operation began with a routine fraud report from a local business that had been victimized by email compromise. As Special Agent in Charge Jason Hudson would later explain, the FBI’s investigation revealed a pattern of interconnected accounts and consistent methodologies that pointed to a coordinated criminal enterprise rather than isolated incidents of fraud.

Meanwhile, Mba was facing additional pressures beyond the criminal conspiracy. His immigration status remained precarious, and rather than maintaining a low profile, he had chosen to compound his legal problems by attempting to obtain permanent residency through fraudulent marriages. Federal prosecutors would later reveal that Mba had entered into multiple sham marriages after his initial application for residency was denied, adding immigration fraud to his growing list of federal violations.

The Reckoning

When federal agents finally closed in on the conspiracy, the human toll became starkly apparent. Margaret Thompson’s $50,000 loss represented nearly her entire life savings. Other victims had been convinced to drain retirement accounts, take out loans against their homes, or even liquidate investment portfolios to send money to criminals they believed were their romantic partners or legitimate business associates.

The business email compromise victims faced their own devastating losses. Family-run companies found themselves unable to pay vendors or employees after hundreds of thousands of dollars in payments were diverted to fraudulent accounts. The ripple effects extended far beyond the immediate victims, affecting employees, suppliers, and entire business ecosystems.

On December 4, 2025, Mba appeared before U.S. District Judge David Hittner to plead guilty to conspiracy to commit wire fraud and conspiracy to commit false statements in immigration documents. The plea hearing revealed the full scope of the conspiracy, including the $4 million in total losses inflicted on victims across the country.

U.S. Attorney Nicholas J. Ganjei’s comments at the sentencing captured the particular cruelty of Mba’s crimes: “Romance scams are among the lowest and most despicable forms of fraud because they prey upon the lonely and vulnerable, and disproportionately victimize senior citizens. These online scams Mba and his friends perpetrated jeopardized the livelihood of family-run businesses, the ability of elderly individuals to retire, and exploited the trust that fuels our economy.”

Justice Served, Lives Forever Changed

Judge Hittner’s sentence of 228 months in federal prison—nearly 19 years—reflected both the scale of Mba’s crimes and their devastating impact on victims. The sentence was significantly longer than those received by his co-conspirators: Morisho, Kadikilo, and Smith received terms ranging from 15 to 25 months, while Golovko received five years of probation.

The disparity in sentences reflected Mba’s central role in the conspiracy and his additional immigration fraud violations. As a non-U.S. citizen, Mba faces removal proceedings following his imprisonment, making his nearly two-decade sentence effectively a life sentence in terms of his presence in the United States.

For the victims, the conclusion of the criminal case provides little comfort. Margaret Thompson, now 69, has moved in with her daughter and struggles to trust online communications of any kind. The family business that lost $200,000 to the email compromise scheme has downsized significantly, laying off three longtime employees.

FBI Special Agent in Charge Jason Hudson emphasized the lasting impact of these crimes: “Romance scams cruelly manipulate trust, callously exploit the fear of loneliness, and leave victims both financially devastated and emotionally shattered.”

The Digital Predator’s Last Act

As Mba awaits transfer to a federal Bureau of Prisons facility, the full scope of his digital predation continues to emerge through victim impact statements and ongoing investigations. The case serves as a stark reminder of how modern technology can amplify ancient crimes, allowing predators to reach across continents to exploit basic human needs for connection and trust.

The irony of Mba’s situation is not lost on federal prosecutors. A man who spent years creating elaborate fictional identities to defraud others ultimately could not escape his own reality: an immigration violator whose criminal enterprise guaranteed his permanent exile from the country he had sought to remain in through deception.

Margaret Thompson still lives with her daughter in suburban Houston. The Valentine’s Day card she never sent to “David” remains in her desk drawer, a reminder of a love that never existed and a future that was built on lies. On quiet evenings, she sometimes wonders about the man behind the messages that once brought her such joy, and whether Leslie Chinedu Mba ever considered the real lives he was destroying with each carefully crafted deception.

The answer to that question died with Mba’s guilty plea, but the consequences of his choices will echo through the lives of his victims long after his federal prison term expires.