June 2021 - Bluestar Forensic

The trial of Hubert Caouissin and Lydie Troadec continued with the testimony of experts who worked on the case.

France info : 29.06.2021

The trial of Hubert Caouissin and Lydie Troadec is taking place in Nantes at the assizes of Loire Atlantique until July 9, 2021.

This Tuesday, June 29, the day was devoted to the account of the experts who worked on the quadruple murder of the Troadec family in Orvault, near Nantes, in February 2017.

The hearing resumed at 9:15 a.m. The president of the assize court, Karine Laborde, calls Pascal Olivier, a DNA expert.

Pascal Olivier quickly explains the principle of DNA. How it can exclude an individual with affirmative when the general characteristics are different. But two individuals can have a close genetic profile. That it is then necessary to refine.

“We used a reagent specific to the Y chromosome to bring out particularities of the DNA. We used Bluestar as a reagent for human blood. It reacts particularly to red blood cells.

Three locations, the crime scene, the 308 car, and the farm.

“We didn’t have a body. From accessories, clothing, we were able to find four DNAs, and verify that they belonged to the missing persons. With washcloths or toothbrushes found at the homes of children we could easily validate these DNA.

“For the crime scene, we found Brigitte’s blood in the garage, the master bedroom, Sebastian’s bedroom, the bathroom, mixed with two others, Pascal and Sebastian.

“Pascal was found in the garage, the entrance, the bedroom, the staircase”.
(Pascal Olivier, genetic fingerprint expert)

“Sebastien, the bed in his room, on a smartphone, in the garage, on a switch in the bathroom. The media reported his guilt, we were able to forget this hypothesis,” he says, continuing, “under Charlotte’s wardrobe we found the genetic fingerprint of Brigitte and Pascal.

"There is a probability of error of 1 in 29 million billion"

“In the kitchen, we have bowls of mugs, we have on a glass two prints in mixture. One of Sebastian, the other unknown. Which turned out to be that of Hubert Caouissin. There is a probability of error of 1 in 29 million billion. We also found Hubert Caouissin’s DNA on the blue chair in the garden.

“There are few places where we find Charlotte’s DNA. On Charlotte’s stethoscope in particular (it’s not the one Hubert Caouissin is talking about), on the parts that are put in the ears”.

“In the vehicle 308, we had 76 samples, there we find the genetic fingerprints of the victims out of blood traces, we find the DNA of Hubert Caouissin on the ventilation control and on the interior mirror “.

With the Bluestar, we find the genetic prints of Pascal, Brigitte, and Sébastien
(Pascal Olivier, genetic fingerprint expert)

Could the crime scene at Mare-d'Albert be hiding other sordid secrets?

In any case, this case, which has been in the news since Friday 28 May, is far from over. New searches in the letchi orchard that the alleged serial killer Umyad Ebrahim was guarding are planned for Tuesday 1 June. A Bluestar exercise will also be carried out in the room in the orchard to search for traces of blood.

During a raid on the orchard yesterday, Monday 31 May, officers of the Major Crime Investigation Team (MCIT) found a pair of sandals and a mobile phone. At present, they do not know who the owner is. The recent discovery of the bodies of two women in their forties buried in a letchia orchard has shocked their relatives. The recent discovery of the bodies of two women in their forties buried in a lettuce orchard shocked their relatives, and they wondered if the alleged murderer, who is in a psychiatric hospital, was hunting for prey on his Facebook page. Would he have made other victims?

Umyad Ebrahim’s mobile phone has been sent to the IT Unit to be checked. His messages will be decrypted to trace witnesses, who will be called to shed light on the case. Investigators suspect that he confided in “friends”.

Flashback. Last October, Zahira Ramputh, 40, met Umyad Ebrahim, 38, a great romantic on social networks. After a few weeks, she moved in with him and believed that the 30-year-old was genuinely in love with her, but the mother of a 17-year-old daughter was sadly mistaken. In January, an argument broke out between the couple. The 40-year-old had learned of the existence of another young woman in the life of the alleged murderer. The two women were bickering over who was the one chosen by Umyad Ebrahim.

But shortly afterwards, the young woman, a woman named Shenaz, had to back out. The investigators suspect that it was the existence of this other young woman that started it all.

Under psychiatric treatment

On the other hand, investigators also met with Umyad Ebrahim’s treating doctors at the psychiatric hospital, who say that he is still undergoing treatment and that they cannot comment immediately on whether the alleged murderer will be able to face an interrogation.

The story came to light a week earlier. Umyad Ebrahim, a 38-year-old psychiatric patient admitted to the High Security Ward of Brown-Sequard Hospital (BSH) was visited by a relative. He asks him to sign his discharge from BSH. He explains that since the death of Zahira Ramputh he has been suffering from depression. A song posted on his Facebook page about a young man killing a young woman he was madly in love with clicked in the head of this relative. He then contacted Zahira Ramputh’s relatives in Vallée-Pitot, who were not aware of the news of her death. One of the victim’s sisters went to the registry office to consult the death certificate and then to the police to report her disappearance.

Pressed with questions by MCIT investigators, Umyad Ebrahim said Zahira Ramputh committed suicide and that he buried her in a place near his home in Mare d’Albert when the body started to decompose. He led investigators there on Friday. After several hours of digging, the remains of the 40-year-old from Vallée-Pitot wrapped in a sheet were unearthed in the lettuce orchard.

In the same evening, the relatives of Hema Coonjoobeharry, a resident of Bambous who had been missing since 10 May, learned of the news through the media. They were aware of the affair between the 40-year-old and Umyad Ebrahim and had reported her disappearance on 22 May. They immediately alerted the MCIT and the investigators again arrived at the BSH. The alleged murderer then confessed to killing her by suffocating her because she did not want to go home. She had joined him in the shack in the orchard on 10 May, her 40th birthday. After three days, he asked the Bambous resident to go home but she refused, he said. The police found his body buried a few metres from the first one in the same letch orchard.

The suspect was examined by a psychiatrist and a police doctor. A report on his condition is expected.

Alleged serial killer: new excavations and Bluestar in the orchard (Audio)

Bluestar Forensic

Monthly Archives: June 2021

Troadec case: traces of blood, burning of the bodies, the word of the experts.