sorry I am all for parents spanking a child but using a power cord and leaving lacerations no wonder the kids behavior was out of whack. I am just guessing but I bet that parent was never consistent with parental punishment and when she finally did punish her children it had more to do with the kids annoying her then correcting behavior... I am guessing that there is a lot more wrong with her parenting then just brutalizing her kids.
It may save him from shotgun blas6t to the chest.
The human race has survived worse corporal punishment.
I doubt she intended to open wounds but I’m not going to condemn her for giving the kid a beating.