Rory Bibb/BBC The site targeted in the shooting is often used to host barbecues, residents have said Police are investigating the possibility of a link between a drive-by shooting that injured four people and a stabbing in which a 33-year-old man was critically injured. The shooting, which left a 25-year-old man in a life-threatening condition, happened on Coldharbour Lane in Brixton, south London, at about 01:15 BST on Saturday. About an hour later, Met Police officers were called to a stabbing some 700m away on Acre Lane. Four people were taken to hospital with gunshot wounds after the shooting. Three people, aged 21, 47 and 70, received non-life-threatening injuries, the Met said. No arrests have been made in connection with either attack. 'Seven shots fired' Officers are investigating the possibility the two attacks are connected, the Met said. A cousin of the 25-year-old man in a critical condition after the Brixton shooting told the BBC their family member was "just a civilian".…