Series Writing

Hi, Can someone help me to check the following paragraph?

1. As the mystery around Elvin's death deepens, the investigation leads them to suspect Johan, the son of wealthy businessman Calvin. Johan sister, Julia replaces as CEO of Calvin Corp, ordered by Calvin.

2. The investigation into Elvin's death takes an unlikely turn when Johan, the son of businessman Calvin, becomes a suspect after providing an unbelievable alibi. Calvin orders his daughter, Julia to replace Johan as CEO of his company, Calvin Corp. Julia reviews the company’s documents and discovers gaps in the records from when Johan was CEO. While all this is going on, Carlos claims his next victim, Dr Alica. Who is she? Why she is being target by the serial killer?