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Former Mo, who murdered a female station worker who was a co-worker at Sindang Station, was arrested.
Jeon had already had her position lifted for sex offenses, but it was revealed that the victim had accessed her internal network twice to check when and where she was working.
Her most recent access was on the day of the crime.
Reporter Park Ye-rin reports.
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Former Mo, who brutally murdered A, who was her motive, in the women's restroom at Sindang Station on Seoul Subway Line 2, comes out of the courthouse after completing the substantive examination of her warrant.
[Jeon Mo / Suspect: (Do you have anything to say to the victim?) I'm sorry.
(Do you have anything to say to the victim other than sorry?) Yes, I'm really sorry.]
Yesterday (16th) evening, the court issued an arrest warrant for Jeon.
The police are considering applying the charge of retaliatory murder under the Special Act through additional investigations against the detained Jeon.
As a result of SBS coverage, it was confirmed that Jeon carefully checked the victim's workplace and her work schedule on two occasions.
She went to the history office of Gusan Station on Seoul Line 6, introduced herself as an employee of the Seoul Transportation Corporation, and accessed the internal network 'Metronet' directly to check Mr. A's work location and overtime schedule.
Earlier this month, in a similar way, she found the victim's workplace through an internal network.
It was possible because she had access to the internal network even though she was released from her position as the police investigation proceeded in October of last year.
Based on these facts, the police also believe that Jeon committed the crime deliberately.
Police said they would open a committee to decide whether to disclose Jeon's face and name as soon as possible.