Indeed, there is more than one plot in the series to date. The story gets a bit bogged down at times, but still keeps the audience in suspense.
My nagging question, however, is how did Luna become the suspect based on the DNA? If she'd not been arrested before, what would the crime scene DNA be compared to? DNA isn't magic!
My nagging question, however, is how did Luna become the suspect based on the DNA? If she'd not been arrested before, what would the crime scene DNA be compared to? DNA isn't magic!