
Cannabis smoker Kane Kennedy, 20, was said to "bad-tempered" when he could not get hold of the drug and argued regularly with the mother of their child.
Preston Crown Court heard he forcibly got hold of Oskar Jobey-Kennedy's testicles, by either gripping, pinching or twisting them, and then pushed his fingers down the throat of the defenceless boy.

According to Daily Mirror,Kennedy denied murder between September 30 and October 1 last year and tried to blame Oskar's mother, Tia Jobey, but a jury did not believe his account.
Kennedy, formerly of Heysham, Lancashire, will be sentenced on December 15.