If you will closely watch the video you can easliy detect that the though Jeevika is aiming the gun on Karan but the gun is facing slightly towards left from Jeevika's side n towards right from Karan's position...n when she pulled the trigger Karan was hit on his left side or shoulder...😕
So how it is possible that the gun which is facing towards right side of the person hits on the left side?😕 (but anything can happen in starplus serial😉)
MY PREDICTION
There might be somebody hiding behind Jeevika probably Jaiswal (as far as I remember Karan asked him to meet him at his place to discuss his plan) who grab this opportunity to take revenge from Viren as everybody will is going to think that Jeevika is the one who murdered Karan n no one will doubt him...
Now we just have to wait n watch how Viren will prove Virat n Jeevika innocence...unfold the mystery of Karan's murder...😉
One more thing...I think I can easily be part of ETF team as my mind has started working as Arjun😉...Samjhe ya Samjhaon..😆😆😆