Yuriy is everywhere this Sunday.
On each wall of the Beaugrenelle slab in Paris (15th century), his face is plastered on the calls for witnesses.
And his name is on everyone's lips.
No one is unaware of the assault of which the 15-year-old teenager was the victim here on January 15 while he was on the run with his friends.
Since the broadcast Friday night on social networks of the chilling video where a dozen people beat him for long seconds armed with baseball bats, crutches or hammer, the emotion is enormous across the country.
Those close to the college student oscillate between hope and despondency.
Saturday afternoon, Yuriy began "to wake up, to want to talk to us, to move", hoped his mother.
But this Sunday morning, "he's not going well," Nataliya Kruchenyk let us know.
In the middle of the afternoon, it was not even going "not at all", whispered the young man's cousin.
VIDEO. Yuriy, 15, beaten up by a gang of young people in Paris
None of the attackers had been arrested this Sunday around 4 p.m., specifies the Paris prosecutor's office, which does not wish to say more about the investigation opened for attempted voluntary homicide.
As of Thursday, the mother confided to us that she had collected several testimonies of young people "being regularly attacked on the slab by a band coming from Vanves (Hauts-de-Seine)".
A track obviously explored by the investigators.
According to BFMTV, on other videos of Yuriy's beating, the attackers would have shouted that they came from this city.
They would have come as far as Beaugrenelle to avenge one of their own who had been beaten up.
A new intriguing video
As is often the case in the affairs of rival gangs, the police in particular try to gather clues by viewing the films posted online by the more or less direct protagonists of the clashes on social networks.
This Saturday afternoon, on a video that we were not able to authenticate, a teenager, his face bleeding, was being molested by several people.
The latter, none of which is recognizable, forced him to apologize.
Why give credit to these undated images?
Because the attackers asked their victim if she intended to return "to the slab" or to "RD4", a city near Beaugrenelle.
It is also not known where the film was shot.
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The track of a dispute between Beaugrenelle and Vanves is in any case seriously explored by the investigators.
However, the two territories, quite distant, are not at all famous for fights between gangs.
"To my knowledge, there is not in Vanves an identified gang capable of committing an act as abject as the beating of which Yuriy was the victim", wonders the mayor (UDI) Bernard Gauducheau.
The elected official has not heard of an assault suffered by a teenager in his town.
"Look around you, there are no tags"
On the slab either, we are not at all in a neighborhood plagued by delinquency.
"From time to time there are young people who gather there, because they are quite quiet there", observes the mayor (LR) Philippe Goujon.
“I've lived here since a kid and I've never had a single problem,” says 23-year-old Kevin.
Look around, there are no tags, no tape lying around.
There are only kids playing in the area and not teenagers who come to settle their scores.
"The chance meeting between" rivals "seems unlikely.
Yuriy, who does not live in the RD4 city and its rue des Quatre-frères-Peignot, is he part of a gang or is he a collateral victim?
It is too early to tell.
After the tragedy, friends of the teenager came to see the mother, but "did not want to say", according to her, what had happened.
Not long ago, Nataliya remembered, Yuriy would have received an unusually late phone call, around 10 p.m.
To his father-in-law, who was worried, the teenager would have replied a little "harshly".
