My Security cameras captured a killer in action.

I often capture unexpected things (1 min video below) on my security cameras.  . . . . . . . . . . . . . . . . . . . . . . . . . .
The cams are to monitor the status of the Chickens (need food? Water? temperature? eggs? everyone there?). A possum can be seen... a frequent but harmless visitor.

About noon a neighborhood cat appears, tries to kill my brown Polish lace, then creeps into the brush, hesitates, then pounces on one of the twin sister black chicks (Silikies) and kills her while another quickly pops out of the brush.  50 minutes later the cat leaves and a bit later only the one black Silkie can be seen.   I didn't miss the killed Silkie until bedtime. That very cat has killed 5 of my birds over the last 5 years (I have videos). I cannot find the cats owner...nobody knows.