A mother and her partner have both been jailed for life with a minimum term of 39 years for murdering her son during a campaign of "horrific and prolonged torture".Sebastian Kalinowski died of an infection caused by "untreated complications of multiple rib fractures", after weeks of what prosecutors described as "cruel assaults and abuse" at the hands of his mother Agnieszka Kalinowska, 35, and her long-term partner Andrzej Latoszewski, 38.

A mother and her partner have both been jailed for life with a minimum term of 39 years for murdering her son during a campaign of "horrific and prolonged torture".Sebastian Kalinowski died of an infection caused by "untreated complications of multiple rib fractures", after weeks of what prosecutors described as "cruel assaults and abuse" at the hands of his mother Agnieszka Kalinowska, 35, and her long-term partner Andrzej Latoszewski, 38.