United Kingdom, Feb. 7 -- Austin Butler was left with a "lot of turmoil" in his mind in the wake of his mum's cancer death.

The 'Elvis' star, 32, was left so devastated when his mother Lori was killed by the disease on 12 September, 2014, aged 50 - a month after his 23rd birthday and following his months as her primary caregiver while she lived with him while fighting the illness.

He told the new issue of Esquire about how he took a break from acting as he crumbled with grief: "I had a lot of turmoil in my mind. I needed time to metabolise some of those emotions."

Days after his mother's funeral, Austin was due on set for 'The Shannara Chronicles' in New Zealand and despite his grief he turned up - with his Esquire profile saying he wo...