Police are appealing for the public’s help in their search for a missing 65-year-old. Alan Shearing was last seen last weekend in Gravesend in his Citroen Nemo van. He was reported missing on Saturday and is now believed to be travelling on foot. A CCTV image captured at around 4pm the following Sunday shows a man authorities believe to be Alan, walking in Rochester Road, Gravesend in the direction of Higham. Alan is 65 years old and around 6ft tall with greying hair and a beard. He is believed to be wearing a green flat cap with black lines on it, and may also be wearing a grey zip-up jumper,…