Omar's POV
When Zopia claimed herself as Ken's mistress and then constantly asked Ken and Janet questions, everyone thought she was crazy. In contrast, I comprehended her strategy.
She must figure out the secret relationship between Janet and Ken somehow, and guess they are the murderers killing Catherine.
But, without objective evidence, she had to make them voluntarily confess. Instead of directly illustrating her guess, she PS some fake photos of her and Ken, perhaps based on the pictures she hacked and stole from Janet's or Ken's phones. She meant to use mistaken images to distract their minds, tensing them up.
Her mad, unexpected behavior was to initially confuse the real murderer. After that, she asked questions to cause pressure on them, finally driving them to lose their minds
