Housewife who starved, tortured and killed Myanmar maid: What drove her to violence?

Gaiyathiri Murugayan was assessed to have developed depression while pregnant with her son. PHOTOS: LIANHE WANBAO FILE, HELPING HANDS FOR MIGRANT WORKERS
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SINGAPORE - Gaiyathiri Murugayan was so preoccupied with cleanliness that she made her then husband drive her to a clean toilet from her workplace on a daily basis.

At home, she ordered her sister-in-law to wear a shower cap in the flat after noticing some strands of her hair on the floor. She also made her family members wear masks to prevent contamination from their nasal discharge.

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