Confused

AUTHOR'S POV: 

" Is it the stalker or the killer?" Francis voiced out his thoughts.

" I am having the same doubt, stalker, or the killer?" Parinithi replied to him. 

The driver started the engine. Parinithi's phone ringed.

" Hello, Siva?"

" Hello, mam. Sorry, I couldn't pick the call yesterday it took a long to finish our works!" 

" Haa! Haa! That's fine! I was the one who didn't pick your call. By the way, is there anything?" 

" Yes, mam! It's about the fingers we got from your house!" He said. 

"Ahh! You are in the lab? If yes, I will catch you there!" 

" I just started from home I will there in 15 to 20 minutes! In case if you are nearer please wait in the lab, I will be there soon." 

" Yup, sure I and Francis will be there!" 

" Okay, mam. See you there!" Then he ended the call. 

" It's Siva from Forensic lab!" She said to Francis. 

" It's about?"