New videos from Nancy Guthrie's doorbell cam shows masked man.
Nancy Guthrie latest updates: FBI releases 1st surveillance images from night of disappearance
BNC terminaton kits are not easily accessible - need BNC connector, pin, pin crimper, BNC crimper, etc.
Look for a BNC connector with terminal block connections.
Or easier to terminate the cable with an RCA connector, then use RCA-BNC adapter.
Used this device successfully in many situations where I needed to convert HDMI -> USB-x, 3.0 & 2.0.
No special software needed.
https://www.magewell.com/products/usb-capture-hdmi-gen-2