A father who shook his baby son so hard that the youngster was left with severe brain injuries has been jailed.
Luke Kerwin, 25, previously pleaded guilty to causing grievous bodily harm to his son, Mason, by shaking him in April 2013.
Derby Crown Court heard Mason now has up to 30 seizures a day and has to be fed by a tube.
Kerwin, from Sinfin, Derby, was sentenced to three years and two months.
Passing sentence, Judge Jonathan Gosling told him: "You were in a position of trust. This was your baby and you were his sole carer and you abused that trust."
Emotions were running high inside the court as Kerwin was led away in handcuffs.
One person shouted from the public gallery: "I hope you rot in hell. You'll pay for what you did."
Mason's mother, Olivia Shaw, of Littleover, said: "What Luke has done to Mason has not only affected him physically and emotionally, it has also had an impact on my life - and my family's life.
"I've lost my independence and am back living with my mum.
"I have to sleep in the same room as Mason because I'm scared of him having a seizure and stopping breathing.
"It's traumatic - if I wake up and don't hear him I have to check he is still alive."
The attack, which left Mason with cerebral palsy and epilepsy, happened when he was four months old.