Different Angle...10 November 2018 — 10:00pmHassan Khalif Shire Ali believed he was being chased by "unseen people with spears" as he grew increasingly agitated and delusional in the weeks before he went on a deadly knife rampage in Bourke Street.The radicalised Somali-Australian was living in a converted garage hidden behind a house in Melbourne's north with his wife and young son as he planned to set fire to his ute and create a deadly explosion that would spread shrapnel at least 100 metres in the CBD.Sources close to the family of Shire Ali, 30, say he had a troubled relationship with family and his life had "spun out of control" in recent years, as he grappled with mental health issues and substance abuse.On Friday afternoon, Shire Ali drove his ute - filled with gas cylinders - into the middle of Melbourne's CBD, before setting the vehicle alight and going on a stabbing rampage which killed much-loved restaurant owner Sisto Malaspina and severely injured two others, and assaulted police officers.