The murders at 113 Medellín Street, in the Roma neighborhood of Mexico City, made headlines in the national press last Sunday.
That day, the police discovered in the house the bodies of Jorge Tirado, 35, his brother Andrés, 27, and his uncle, Luis González, 73. The faces of the Tirado brothers filled social networks during the weekend.
The young men, an actor and a musician, were known on the cultural scene of the capital and their disappearance shocked the population.
Little was known about his uncle then.
Along with them, the agents found Margarita María Ochoa (72 years old), aunt of the young people and wife of González, alive.
She had signs of violence and reported having been extorted by the alleged culprits, identified by the Prosecutor's Office as Blanca, Azuher and Sally, mother, daughter and son-in-law.
The Medellín 113 house was the motive for the homicides, the scene of the crime and one of the main pieces of evidence.
The case turned out to be a tangled web of home ownership disputes, ambition, and clumsiness.
Here are five keys and an unknown to try to shed some light on the facts:
victims and perpetrators
Crime is gruesome.
The three murdered, the survivor and the three suspects had lived under the same roof for several months.
The Tirado brothers arrived in the capital from Sinaloa in August and moved in with their uncles, who had been in Medellín 113 for only a couple of months.
The house belonged to Ochoa's brother, who died in May of a serious illness.
The detainees had lived in the house for a longer time: one of them worked as a nurse for the old man, who needed constant care until her death.
As part of the agreement she had reached with the man, she, her daughter, and her son-in-law resided on the ground floor of the home.
When Ochoa and González moved into the property, they were allowed to stay out of "solidarity", according to sources from the Prosecutor's Office,
Andrés and Jorge TiradoRR.SS.
The cause
The three detainees, according to the Prosecutor's Office, had their own plans for the house.
They did not want Ochoa to sell it, on the contrary, they had been planning to keep it for a long time.
First they tried legally: the nurse argued that she and the already deceased old man had been a couple and that is why the house belonged to him as an inheritance.
She couldn't credit it.
Ochoa and González moved to Medellín 113 from Jalisco to process the regularization of the inheritance and to be able to sell the property.
When they were about to finish the legal process, Blanca, Azuher and Sally reacted to prevent it: they murdered the three men and left the woman alive so that she could sign the documents they needed to take ownership of the residence.
But their plans were frustrated by their clumsiness and the erratic way they had to act,
The murderers
The three men were gagged, beaten and suffocated, according to a source close to the investigation.
They died on Friday, the same day the Tirado brothers disappeared.
The culprits kept their bodies until the following Sunday in a room in the house that they used as a store.
It is one of the behaviors that for investigators demonstrates the inexperience and erratic behavior of the murderers.
“Killing three people and having them in the place without much care or decision-making capacity speaks to you of what was improvised and the little capacity to respond.
Other more structured [criminal] actors would have removed the bodies the same day, they would have disappeared," a source from the Prosecutor's Office with knowledge of the case said in an interview with EL PAÍS.
Those detained by the Mexico City Attorney General's Office.
FGJCDMX
Chronology of events
The Tirado brothers disappeared on Friday.
On Saturday, friends, relatives, relatives and personalities from the world of culture began to denounce him on social networks and the images of them with the alert spread on the internet.
That same Saturday, the investigators arrived for the first time at Medellín 113 and were interviewing the residents of the property.
A son of Ochoa and González, alarmed at the lack of news about his parents, showed up at the house.
The suspects did not allow him to enter and the man went to the Prosecutor's Office to file a complaint.
It was the definitive clue that led the agents to enter the house, where they discovered the bodies, Ochoa kidnapped in another room, and the three detainees.
They were treated as witnesses at first,
although the inconsistencies in his account made him quickly become the main suspects.
The news of the murder spread like wildfire and generated a great commotion among the capital's population, accustomed to living with violence.
Crime scene
Medellín 113 is a two-story gray stone building, old and with dirt spots on the façade.
Although somewhat decadent, vestiges of a stately past can still be seen in it.
“It is a very strange house, you almost never see movement.
The lady they arrested went out from time to time to sweep, but the house was always closed like that, in the dark," a neighbor told this newspaper.
However, the value of the property, more than its construction, lies in its location: Roma Norte, one of the most exclusive neighborhoods in the capital, immersed in a fierce gentrification process that has expelled most of the original population .
A piece of land in this neighborhood is a highly valued possession due to the benefits it can bring.
A policeman guards the home where three men lost their lives. Mónica González Islas
Possible accomplices?
Although it has not yet been confirmed by the authorities, some sources speak of the possibility that the three alleged culprits did not act alone in the murders.
It is the main unknown of the investigation right now, a question that the authorities have yet to clarify.
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