Building video and key-fob records tracked a mother and son before officers were summoned to their Brickell high-rise, say police.
MIAMI, Fla. — From an elevator ride late at night to a return to the lobby before dawn, investigators say cameras and electronic access records inside a Brickell high-rise documented crucial movements surrounding the death of a woman who had traveled from Mexico to visit her son.
Miami police arrested Stefano Cremasco-Cicero, 36, on a second-degree murder charge after officers found his mother fatally stabbed in his 47th-floor apartment at the Solitair Brickell building Sept. 4. The arrest report described a case built in part around surveillance footage, key-fob information, physical evidence recovered from the apartment and the account of a food delivery worker who helped communicate with a 911 dispatcher. Cremasco-Cicero told officers, “I was defending myself,” according to police. Authorities have not publicly established a motive or released a detailed account of what occurred inside the apartment before the stabbing.
The recorded timeline began the previous night. Police said cameras showed Cremasco-Cicero and his mother together after they returned to the building at about 10:30 p.m. They entered the elevator and went toward the residential floors. His wife later told investigators that the woman was visiting from Mexico and staying with her son while the wife was out of the country. Nothing in the publicly described surveillance from that portion of the night establishes a confrontation. Instead, the footage serves as a time marker placing the two together several hours before emergency responders were called.
By about 4:30 a.m., police say the appearance of the surveillance evidence changed sharply. Cremasco-Cicero was allegedly recorded entering an elevator while carrying a knife and wearing clothes that appeared to have blood on them. According to the arrest report as described by several local outlets, he dropped the knife, picked it up and moved through another part of the building before heading back upstairs. Police said building key-fob records corroborated elements of the camera footage, giving investigators a second electronic record against which to compare his movements.
The next part of the video allegedly showed Cremasco-Cicero in different clothing. Police said he left the building, walked along Southwest Eighth Street while using a phone and then returned. After coming back inside, he sat on a couch in the lobby. Investigators have not publicly said that the footage captured the fatal encounter itself. Instead, the cameras appear to document events before and after the period in which authorities believe the stabbing occurred. That limitation leaves the central confrontation inside the apartment to be examined through forensic evidence and whatever additional testimony or records emerge in court.
A food delivery worker then entered the timeline. She told investigators that Cremasco-Cicero opened the building door for her and asked for assistance. He called 911 on his phone but gave the device to the worker so she could provide the address, according to accounts of the report. She noticed blood on him and later tried to hand the phone back, but she said he refused to take it. Her account places Cremasco-Cicero in the lobby immediately before officers arrived and provides an outside witness to his appearance and conduct after the movements recorded on surveillance video.
Police were dispatched at about 4:47 a.m. When officers entered the lobby, they found Cremasco-Cicero with blood visible on his shoes, hands and clothing, authorities said. It was during that encounter that he made the statement about defending himself. Officers then went to the 47th-floor apartment. His mother was found near the entrance, fully clothed and suffering from multiple apparent stab wounds. Miami Fire Rescue personnel responded and pronounced her dead at about 5:08 a.m., according to the police account.
The investigation then shifted from documenting movement to collecting physical evidence. Detectives searching the apartment reportedly recovered several kitchen knives with what appeared to be blood residue, two shirts bearing blood spatter, broken glass and a broken wine bottle. Public reports have not established which knife caused the fatal wounds or described final forensic testing linking individual items to the death. The distinction is important: police evidence inventories can identify what investigators recovered, but they do not by themselves establish the ultimate meaning of each item or prove every element of a criminal charge.
Cremasco-Cicero’s wife supplied investigators with information about the family’s circumstances. She said her husband and his mother had not been close since his parents divorced. She also said he was under stress related to the opening of a restaurant in Coconut Grove. Neither statement has been announced by police as the motive for the alleged killing. Authorities have not said that the family estrangement led to violence or that work pressure caused the encounter. Those details remain context from a witness interview, while the unanswered question is what specifically happened between mother and son inside the apartment.
The restaurant mentioned in the investigation was part of Cremasco-Cicero’s professional life before his arrest. He had been linked to 1986 Steak House in Coconut Grove. Florida business records list Stefano Eduardo Cremasco Cicero as a manager of 1986 Steak House LLC, along with other managers. The restaurant had opened earlier in the year and had received local attention as a new hospitality venture. That business history may explain the stress referenced by his wife, but it does not provide evidence of motive and should not be treated as a cause of the killing without supporting facts.
For residents of the high-rise, the investigation was visible across several parts of the property. Police worked in the lobby and apartment while officers and emergency personnel remained around the building. Residents told local media they were frightened or surprised by the presence of police and by learning that a woman had died inside the tower. Miami police described the incident as domestic-related and isolated, signaling that investigators did not believe there was an ongoing threat to other residents after Cremasco-Cicero was taken into custody.
The electronic timeline also illustrates the different evidentiary roles played by cameras, key-fob logs and witnesses. Surveillance can show where someone appeared at a particular time and what was visible on camera. Access records can help corroborate when doors or secured areas were entered. A witness can describe an interaction that occurred in person. None of those sources automatically explains intent. In this case, the public record still does not disclose why the encounter allegedly became violent or what conduct preceded Cremasco-Cicero’s reported self-defense statement.
The legal proceedings began soon after the evidence collection. Cremasco-Cicero was booked into the Turner Guilford Knight Correctional Center and appeared before a Miami-Dade judge. Circuit Judge Lissette De La Rosa denied bond, according to local court coverage. Reports also cited an immigration-related hold in county records. The case was assigned within Miami-Dade Circuit Court. Those detention decisions are separate from a verdict on the second-degree murder charge, and Cremasco-Cicero is entitled to the presumption of innocence unless and until guilt is established in court.
The victim’s earliest public identification was limited, with police and news reports initially withholding her name and age. Authorities consistently described her as Cremasco-Cicero’s mother and said she had been visiting from Mexico. Later secondary reports circulated additional personal details, but the core police account does not depend on them. The critical established relationship for the case is that the woman found dead in the apartment was his mother and had been staying with him during her visit.
As of Oct. 20, no final court resolution of the charge was established in the reliable public reporting reviewed for this article. The surveillance and electronic records described by police provide a detailed chronology around the alleged killing, but the most consequential period — what happened inside the apartment and whether the evidence supports or contradicts the reported self-defense assertion — remains a matter for the ongoing criminal process.
Author note: Last updated October 20, 2026.