‘MobLand’: Why Eddie Harrigan Killed Tommy Stevenson, Explained

‘MobLand’ built its entire first season around a single act of violence that took place off screen, and viewers spent weeks piecing together who was responsible and why. The Paramount+ crime drama, created by Ronan Bennett with Guy Ritchie directing the opening episodes, followed the bloody fallout between two rival London crime families after one family’s heir turned up dead. The series premiered exclusively on Paramount Plus in the United States on March 30, 2025.

At the center of that fallout is Eddie Harrigan, whose reckless choices set off a war he did not fully understand until much later. Untangling why he killed Tommy Stevenson means looking closely at both the boys’ fractured friendship and the family matriarch quietly steering events from behind the scenes.

Eddie Harrigan and Tommy Stevenson’s Fatal Night Out

Tommy and Eddie, sons of rival gang leaders, ran into each other while out on the town and initially squared up over which family truly controlled the South London streets. The confrontation eventually cooled, and the two decided to spend the evening together instead, moving through the city on what became a drug fueled night out.

The show deliberately cut away before revealing what happened next, leaving only the aftermath for audiences to piece together. Tommy soon went missing, and rumors began circulating that someone had killed him. Because Eddie had been the last person seen with him, suspicion fell on the young Harrigan almost immediately.

It was later confirmed that Eddie paid the club manager, Valjon, to leave the two of them alone at the venue so he could deal with Tommy himself. When Valjon returned, he found Tommy on the ground covered in dozens of stab wounds, and it emerged that Eddie had stabbed him somewhere between fifty and sixty times before calling Valjon in to help dispose of the body.

Investigators within the story initially had little concrete evidence tying Eddie to the crime, since he had only admitted to being with Tommy without offering further detail. It took Harry Da Souza tracking down other witnesses from that night before the trail led back to Valjon and, ultimately, to Eddie.

Valjon’s False Confession and the Harrigan Cover Up

Once Harry Da Souza, the Harrigans’ fixer, understood what Eddie had done, the family faced a serious problem. Eddie remained dismissive about his own involvement in Tommy’s death even as Richie Stevenson threatened to tear London apart looking for the culprit.

Valjon’s confession about Eddie only came after Harry physically beat the truth out of him, since Valjon had initially stayed silent to protect his own children from retaliation. With that information in hand, Harry set out to find a scapegoat rather than let the truth come out and risk an all out gang war.

Harry approached Valjon directly and promised that if he took the fall for Eddie’s crime, no harm would come to Valjon’s family. Kevin and Harry then pressured Valjon into accepting blame for the murder specifically to prevent a full scale war between the Harrigans and Stevensons from erupting.

Valjon ultimately admitted in front of Richie Stevenson that he was the one who had killed Tommy. He told Richie the killing happened during a botched kidnapping attempt, a lie he stuck with purely out of fear that the truth would put his own children in danger.

Maeve Harrigan’s Manipulation Behind the Killing

The bigger question hanging over ‘MobLand’ was never really whether Eddie pulled the knife, but who pushed him toward doing it. Maeve Harrigan, played by Helen Mirren, had supported Eddie’s actions from the very beginning of the series, and later episodes suggested she played a far more active role in Tommy’s death than initially assumed.

In one pivotal scene, a visibly shaken Eddie asks his grandmother directly whether killing Tommy had been a mistake. Maeve responds with a reassuring smile, telling him, “We’ve got everyone exactly where we want them,” a line that strongly implies she guided Eddie toward the murder rather than simply reacting to it after the fact.

It was eventually confirmed that Maeve manipulated Eddie into killing Tommy as a way of testing the Harrigan family’s ability to come out on top against the Stevensons. Maeve’s assurance to Eddie indicated her influence in persuading him to commit the act that ultimately ignited the entire war between the two families.

Throughout the season, Maeve appeared to be operating behind Conrad’s back, using the chaos between the Harrigans and Stevensons to consolidate power within her own family. That framing recasts Eddie less as a lone hothead and more as an instrument in his grandmother’s larger scheme.

The Harrigan Stevenson Gang War That Followed

Tommy’s death did exactly what Maeve seemingly intended, plunging both families into open conflict. His murder quickly became the catalyst for the simmering tension between the Harrigans and Stevensons, with Richie Stevenson threatening Harry’s own family in his search for answers.

Even as evidence pointed toward Eddie, the show left room for other possibilities, noting that several other parties had reason to frame the Harrigans and provoke a war, since the two families were far from the only gangs operating in the city. That ambiguity kept audiences guessing well into the season before Valjon’s forced confession clarified the truth.

By the time the season reached its later episodes, Harry and Kevin had succeeded in killing Richie Stevenson, effectively ending the war Eddie’s actions had started. Eddie’s own arc grew increasingly unstable from there, particularly after he learned the truth about his father, and the finale left his fate uncertain following a violent confrontation with Bella.

The show’s popularity only grew as these revelations unfolded, with Paramount+ confirming that the premiere episode drew around 2.2 million viewers, making it the streamer’s biggest global series launch to date. That reception suggests audiences were fully invested in untangling exactly who was pulling the strings behind Tommy’s death.

Given how much of the Harrigan family’s fate hinged on Maeve’s quiet manipulation of her own grandson, it is worth asking readers whether they see Eddie as a killer acting on his own instincts or simply a pawn in Maeve’s larger game for control.