Stefan Barlow tells David Squelch's murder trial of moment he tried to save James Wallington after stabbing at Tunbridge Wells recycling centre
![Stefan Barlow tells David Squelch's murder trial of moment he tried to save James Wallington after stabbing at Tunbridge Wells recycling centre](http://media.kentonline.co.uk/filerepository/2015/10/8//0_56478_1-330.jpg)
A mechanic has told a murder trial of the moment he tried to stem blood pouring from his colleague after a knife attack so brutal, it penetrated bone.