Only Murders in the Building: Why did The trio believes the mysterious person Ben was talking to may have poisoned him.?

In the episode "Thirty" of the television series Only Murders in the Building, the trio consisting of Charles, Oliver, and Mabel makes progress in their investigation into the murder of their neighbor, Ben. Throughout the episode, they uncover several key pieces of information that lead them to believe that the mysterious person Ben was talking to may have poisoned him. This newfound theory adds an intriguing twist to the already complex murder case, providing the trio with a new direction for their investigation.At the beginning of the episode, the trio discovers that the stalker they had previously suspected is not the killer. This revelation prompts them to shift their focus onto other potential suspects. They manage to find shredded documents related to the case, which they painstakingly piece together to gather clues. The shredded document leads them to a revelation that the book they believed was connected to Ben is actually connected to a character named Dickie. This shift in focus creates a new line of inquiry for the trio, raising questions about Dickie's involvement in the murder.Meanwhile, amidst the investigation, someone confesses to Ben's murder. However, before they can learn any valuable information, Mabel interrupts the confession and is taken into custody. This unexpected turn of events adds another layer of mystery and raises doubts about the true identity of the killer. Additionally, Oliver suffers a heart attack but manages to recover, surprising the doctor. This health scare foreshadows the urgency of solving the murder case before it becomes a matter of life and death for the trio.As the trio continues their investigation, Charles becomes increasingly concerned about Mabel's obsession with him. This concern leads them to make a decision to focus on proving the innocence of a character named Loretta, who has confessed to the murder. They believe that by finding the true killer, they can convince Loretta to retract her confession and ultimately save her from a wrongful conviction.To gather more information, the trio decides to question Dickie without revealing Loretta's identity as his mother. They suspect Dickie of being involved in Ben's murder and plan to gather crucial information from his mother, Donna. They consider Donna's potential motive due to Ben stealing CoBro, a business venture, from her. However, during the interrogation, Donna confesses to covering up things for Ben but denies any involvement in his death. She reveals that Ben would disappear on Thursdays, referring to his activities as meeting with "five whores." This confession raises suspicions about Ben's activities and potential connections to his murder.Continuing their investigation, the trio shifts their focus away from Loretta as a prime suspect. Charles's alibi clears him of any involvement in the murder, prompting them to search for the real killer who could convince Loretta to retract her confession. They decide to trace Ben's activities leading up to his death, starting with Broadway and 35th. However, their attempts to enter a suspected front, a brothel, are fruitless. Instead, Charles pretends to cry to gain entry into a nearby fabric shop, where they meet women from Ben's sewing circle. These women reveal that they last saw Ben on the opening night of a play called Death Rattle. They helped him sew personalized hankies for the cast and crew, creating a potential lead for the trio to investigate.Delving deeper into the timeline of events leading up to Ben's murder, the trio listens to voicemails he left expressing distress and a feeling of being surrounded by untrustworthy people. They investigate the 30 minutes between Ben's arrival at the theater and his distressed voicemail, piecing together a timeline using police interrogations. They learn that Ben was late for the show and had an argument with KT, the stage manager. Furthermore, they discover that Ben was fasting and that he was punched by Charles during a rehearsal. These new details shed light on the tensions within the theater production and potential motives for Ben's murder.Donna mentions that Ben looked bad leading up to his death, complaining about Charles and Loretta. Another important piece of information surfaces when Tobert, a behind-the-scenes filmmaker, approaches Ben with his camera. Ben takes the camera into his dressing room and is caught on camera talking to someone mysterious. The trio analyzes these pieces of evidence and begins to form the theory that the mysterious person Ben was talking to may have poisoned him.This new theory raises questions about the identity and motivations of the mysterious person. It also adds complexity to the investigation, as the trio now needs more time to solve the case and prove Loretta's innocence. Despite their disappointment, they remain determined to continue their investigation and bring the true killer to justice.The trio engages in a discussion about Mabel's birthday and her childhood predictions, finding solace in spending the day together amidst the tensions of the murder investigation. While reflecting on these personal moments, Howard, one of the trio members, reveals that he has solved the shredded documents. He mentions a review criticizing Ben's performance, leading the trio to suspect that someone wanted to get rid of Ben to save the play. This revelation further supports their theory that the mysterious person Ben was talking to may have had motive and opportunity to poison him.Racing against the clock, the trio devises a plan to prove Dickie's innocence and release Loretta from jail. They suspect Donna as the potential perpetrator, considering her motives and opportunities. However, they are aware that solving the case in time will be challenging. Mabel takes charge as they rush to the courthouse, using her admittedly made-up status as a "bride" to commandeer a cab. They pretend to be Mabel's fathers to gain access to the courthouse and find Loretta. They convince Loretta not to plead guilty, as they believe Dickie is innocent and that Donna may be involved in Ben's murder. Loretta reluctantly agrees to trust them, raising the stakes as they strive to prove Dickie's innocence and uncover the truth about the murder.The episode concludes with Oliver accidentally snorting dramatically when asked about the real killer. This unexpected moment creates suspense and heightens the tension in the narrative. The trio stands on the precipice of solving the case, fervently working to gather enough evidence to prove Dickie's innocence before time runs out.In summary, the decision made by the trio to suspect the mysterious person Ben was talking to of poisoning him is driven by a series of discoveries and events throughout the episode. As they piece together various clues and gather information, the trio navigates a web of relationships and tensions within the theater production, uncovering motives and potential suspects. This decision adds a new layer of complexity to their investigation, raising questions about the identity and motivations of the mysterious person. Their determination to solve the case and prove Loretta's innocence intensifies as they race against the clock, pushing the narrative forward with heightened suspense and intrigue.