Fiction Books - Aghast : Ch-36 Origin of a Signal

Two police staff members Richard and Eric were monitoring the circuit TV kept before them, sitting in the surveillance cabin, which was Christopher's guest house converted to surveillance cabin.
" At last we got the task to keep an eye on cats and dogs. ..." Eric said sarcastically.
" Three days of this crap is enough; I’m done. " Eric said in irritation.
" And I didn't join the police force to protect rapists. " his prattle was still going on.
Richard didn't respond.
For a while Erick kept quiet and his prattle started again.
" Boss's this theory of cats and dogs seems to be right... But one thing I don't understand?" Eric said.
Erick looked at Richard, expecting that Richard will ask 'Which thing?'. But he was absorbed in his work. He didn't speak.
" You know which thing? " Eric asked shaking Richard’s shoulders.
He just blankly stared at him and continued.
" ... that who could be the killer? ... If we consider John, but he is dead... and if we consider George, he is in the lockup.... then who could be the killer? '' Eric kept on questioning, and answering his own questions.
Richard was still just listing him without any response.
" Hey are you like this at home too?" Eric asked in irritation.
Richard just looked at him.
" If you are like this at home too, then how do you have kids? I'm surprised. " Eric was trying to tease and annoy him. He thought may be he would talk due to this. And yes his guess proved to be right.
Richard turned to him, in his defense and said, "Is it required to speak for having kids? "
"You are right; Neighbors will take care of without speaking. " Erick still didn't want to leave him.
Richard furiously held a wireless phone to throw at him.
Eric got up and ran around laughing.
Suddenly there was beep on the control board.
"Something is happening. " Richard said.
There was some movement on one of the monitor. A black cat walked across.
" The cat again!" Erick said.
" See the belt in her neck. " Richard said.
" That means... as our Boss says the belt must contain receiver" Eric said.
" And it seems the receiver is detected... That's what the beep is about" Richard said.
Erick peeked up the wireless and spoke in it, " Sir, there is intrusion… the cat broke in the house." Eric informed his Boss.
" Good... Now try to trace the origin of the signals" Sam directed.
Suddenly the signal tracing instruments gave indication on the computer.
" Sir, we have already taken care of that." Eric said, looking at the computer.
" Great job, I’m on my way " Sam said and disconnected the phone.

... contd..