Their police custody ultimately resulted in nothing.
Three people taken into custody this Tuesday morning by the gendarmes of the Strasbourg research section were finally released this Wednesday.
By interviewing these suspects, the investigators hoped to lift part of the veil of darkness which still surrounds Lina's disappearance, six months later.
The very first police custody carried out on commission by the investigating judges, in this mysterious case, therefore concerned a couple in their seventies and a man in their forties, all living in the Alsatian region.
Their detention was intended to detect possible inconsistencies in their initial statements, particularly regarding their schedule.
Disappeared in a matter of minutes
At the end of the morning of September 23, Lina, 15, left her home in Plaine (Bas-Rhin) to go to the Saint-Blaise-la-Roche station, about three kilometers away.
She had to take a train to join her boyfriend in Strasbourg.
Not seeing her arrive, it was he who alerted the young girl's mother.
Witnesses, including the former village mayor, saw Lina walking on a small road towards the station between 11:15 a.m. and 11:30 a.m.
The teenager's phone went off the air at 11:22 a.m. and has not been found.
Despite extensive searches over the following days, no trace of the young girl was found.
Also read “It’s Lina’s life we’re talking about”: 6 months after the disappearance, the call from the teenager’s mother
Last week, Lina's mother and her lawyer Matthieu Airoldi gave a press conference, regretting not having access to the investigation file managed by two Strasbourg investigating judges.
Fanny Groll, Lina's mother, also launched a call for testimony to advance the investigation.