Two days after the death of a high school student in Argenteuil, the two suspects are still in police custody, while investigators seek to retrace the scenario of the tragedy.

According to the first elements of the investigation, a tense context of love triangle which has turned into harassment could be at the origin of the tragedy. 

A romantic rivalry that turned into harassment?

Two days after the death of Alisha, the teenager found dead drowned in the Seine in Argenteuil on Monday evening, the investigation is still trying to establish the causes and exact circumstances of the tragedy.

Two 15-year-old teenagers, Théo and Juni, who attend the same vocational school in Val d'Oise as the victim, are still in police custody.

According to the first elements of the investigation, a romantic rivalry would have turned into harassment. 

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Tensions between current girlfriend and prime suspect's ex 

A tense context that had lasted for several weeks, to the point that officials of the Cognacq-Jay vocational school were aware of the situation.

A disciplinary council was to be held on Tuesday, concerning Theo's behavior.

It is he who is suspected of having harassed the victim by posting photos of her in undress on social networks.

The teenager is said to have dated Alisha a few months ago, before going out with another young girl, Juni.

And it is precisely between the latter that the tension has risen in recent weeks, going so far as to fight last week in front of the school.

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Many gray areas

But between the fight and the assault, no one seems to know what happened.

However, Alisha's little brother told Europe 1 that his sister had an appointment Monday evening on the banks of the Seine.

Still, many gray areas remain: what were the intentions of the two teenagers when they made an appointment with their victim?

Who hit him and pushed him into the Seine?

So many questions to which the investigators will try to answer, in order to establish the scenario of this tragedy.