According to Mossos d’Esquadra, the man accused of murdering Janet Jumillas took steps to erase the crime scene. On Wednesday, Catalan police scientists testified in the trial, confirming that the suspect, identified as Aitor G., was located at the address linked to the incident. Janet’s blood was found in the Cranberry area of Baix Llobregat, despite the suspect’s detention since May 2019.
Aitor is believed to have killed the 39-year-old neighbor from Viladecans around 11 p.m. on March 13, 2019, in the dining room. The indictment states that he used a knife to stab Janet six times, five of them in the neck and one in the hand, the injuries inflicted as she attempted to defend herself. Forensic experts testified that the autopsy showed a facial fracture from a blow, and Janet died from blood loss. After the attack, investigators allege the suspect wrapped the body in a curtain, loaded it into the car trunk, and left it in the sun, with his partner and a friend, Christian, unaware of the crime and serving as an alibi. The body was discovered in El Prat de Llobregat more than two months later. Authorities say the suspect then sought to conceal the murder trail.
Examining the blood evidence, Mossos noted that Aitor thoroughly cleaned the bloodstain and likely used a whitening agent such as bleach. He rearranged a television cabinet to obscure the scene, placing it in a position that initially made the room appear altered. When investigators entered the home two months after the crime, they observed that the TV could not be viewed from the front seat in the previous setup and noted the cabinet had been turned ninety degrees to the right. Removing the furniture revealed a hidden area on the floor and wall under the cabinet. A blood-cleaning spray had been used, and where the spray glowed under the device, investigators saw blood residues in the walls and tile joints. The glowing dots also mapped to areas that had been rubbed or cleaned in an attempt to erase traces.
Through this evidence, investigators concluded that a crime had occurred in that room and that an attempt had been made to hide it. Yet the origin of some blood traces remained unknown. To resolve this, authorities sought tiny spatter marks that might have remained during the attack. A few drops found high on the wall near the dining room door were consistent with blood splatter from the blade motion. One of these drops yielded a genetic profile that, when compared with Janet’s, showed a 99 percent match.
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Aitor was questioned by Mossos about a week and a half after Janet’s death. His demeanor prompted further scrutiny, and investigators began to monitor him closely. A few hours later, possibly spooked by the ongoing investigation, he discarded two bags into a container. Police officers observed the act and later recovered the bags for laboratory analysis. In one bag, they found three mats with blood traces used to wipe the crime scene. Biologists confirmed the blood belonged to Janet.
What investigators could not determine was whose blood appeared in the trunk of Aitor’s car. When Mossos arrested him in early May, two months after the murder, they searched the vehicle and found blood traces. Some samples could not be genetically profiled to confirm Janet’s blood, and others did not yield a clear origin. The remains of the samples suggested that the body may have been transported in the trunk on the afternoon of March 13, though a definitive link required further testing.
The Barcelona court session concluded with Aitor’s testimony, reinforcing the prosecution’s position. Investigators described to the jury the array of physical evidence that had cornered the defense, asking for either acquittal or acceptance of the scientific findings that connected the defendant to the crime.