A mother and her partner have been found guilty of murdering her four-year-old son, Daniel Pelka who had been beaten and starved.
Daniel died from a head injury in Coventry in March 2012.
During a nine-week trial at Birmingham Crown Court the emaciated boy was likened by a doctor to that of a concentration camp victim.
Mother Magdelena Luczak, and her partner, Mariusz Krezolek, had denied the charge.
In her summing up, Mrs Justice Cox said it was an "emotive case" but urged the jury not to be swayed by emotion.
Both defendants had given a different version of events about what happened blamed each other.
The court heard Daniel's head injury was one of 30 he suffered.
Det Insp Chris Hanson, of West Midlands Police, said: "He was beaten, he was drowned, and he was poisoned with salt.
"It was an absolutely wretched existence for him."
Daniel's death is the subject of a serious case review by Coventry's Safeguarding Children Board.