Police investigating the murder of a Paisley shopkeeper say they have received 'new information' on the case following a televised appeal.
Javaid Ali, 48, was attacked on June 15 in Sunshine Grocers in Green Road, Paisley, Renfrewshire.
He died from his injuries in the town's Royal Alexandra Hospital on June 29.
On last night's edition of Crimewatch, Strathclyde Police made a fresh appeal for help to trace his killer, with a reward of £50,000 being offered for new information that would lead to the arrest of the person responsible.
A spokeswoman for Strathclyde Police said: "Following last night's appeal on BBC's Crimewatch programme, officers are now following up a number of calls, many of them giving new information to the inquiry team.
"However, officers are still appealing to anyone who was in the Sunshine Grocers, Paisley, on Friday, June 15 and has yet to speak to officers to come forward as soon as possible."
Prior to the TV appeal, Mr Ali's son Abbas, 25, had told of his family's 'suffering' as they tried to come to terms with his father's murder and had urged anyone with information on the incident to come forward.
He said: "Our family is absolutely devastated at the loss of my father, Javaid Ali.
"I cannot put into words the suffering this has caused our family and it will take a long time for us to come to terms with what has happened.
"It is the nature of his death that is so traumatic for us to deal with. We would urge people with any kind of information to come forward and speak to the police. At this time we'd also ask for all to respect the privacy of our family."
"Anyone with information can contact the incident room on 0141 435 1017 or call Crimestoppers in confidence on 0800 555 111."
- Shopkeeper murder: TV appeal after father stabbed to death in store
- £50,000 award offered to catch killers who stabbed shopkeeper to death
- Son of murdered shopkeeper reveals family 'suffering' over death
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