Stabbed 20 times and left to bleed to death in a petty row over a drug debt - yet another young victim of knife crime

Early on a Sunday morning, a dog walker made his way through a local beauty spot. With a picturesque lake, a play area and plenty of ducks to feed, Clowes Park is popular with families, an oasis of calm away from a busy area of Salford.

But on that cool morning, he made a discovery which would transform a leafy retreat into the centre of a murder investigation. The body of a teenage boy was found.

He'd been brutally killed, stabbed 20 times. Around the same time the appalling discovery was made, at 7.30am on January 30 last year, Alan Szelugowski's family reported the 17-year-old missing.

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Alan had lots of friends and was well liked. He was studying at college, and lived at home with his mother and her partner.

One of his closest pals was Maciej Mikolajczyk. Then also 17, Mikolajczyk was born in Poland and came to live in the UK about a decade earlier.

He worked as a receptionist at a branch of the Premier Inn hotel chain on Deansgate Locks. Mikolajczyk been to different schools than Alan, but the pair met through mutual friends and bonded over video games, football and smoking cannabis.

They would visit each other's homes and meet up regularly. But the pair would later become embroiled in a bitter feud, which would ultimately end with Mikolajczyk in the dock accused of Alan's murder.

Drugs, as is so often the case in murder trials, were the catalyst for this tragic killing. Despite his tender age, Mikolajczyk admitted he was dealing.

He said he'd sold Alan some cannabis, but that Alan hadn't paid him back for it. In the days before the murder, a feud intensified. Alan branded Mikolajczyk a 'snake' in a text message.

He lambasted Mikolajczyk