Terence Stamp 's last film performance – shot in the gardens of his care home shortly before his death at the age of 87 – is fueling speculation the British screen icon was killed by dementia, RadarOnline.com can reveal.

The Oscar-nominated star, who died on August 17 in a Bickley, Kent, care facility, was said to have worked with his family earlier this summer on a documentary that explored both his life story and the effects of Alzheimer's disease.

A source told us: "The project's content has prompted questions about whether the same condition may have contributed to his death." Article continues below advertisement Article continues below advertisement

Another insider familiar with the footage added: "What Terence filmed wasn't just about his extraordinary career. It dea

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