[HIGHLIGHTS] The couple suspected of murdering their second daughter and older sister are in trouble for selling their father's apartment without permission.

The couple suspected of murdering their second daughter and older sister are in trouble for selling their father's apartment without permission. In a case where a couple was arrested for killing their 4-year-old daughter and sister in their 40s by ingesting harmful chemicals, the husband took over the condominium that the husband's father had purchased.

In response to these problems, her sister joined her father's company and became responsible for her accounting, and the Metropolitan Police Department is investigating what happened at the time.