For someone that does something so sick and depraved like this, throwing them in a cage with the deceased babies parents is far too easy.
Someone like this needs endless torture. I'd advocate for endlessly waterboarding the fuck out of this bitch until her lungs explode in her rib cage. Suffer for weeks, months and then let her die a slow agonizing death.
Seriously, for paedo's and other sick fuckers. Slow, painful deaths until they start begging for a bullet to the head is the only way to deal with the scum.