The family of Azim Azam, who was stabbed on his way to college in Moseley yesterday morning, have paid tribute to him.
Azim was a lovely young lad who was full of life. He was a bubbly character and all family and friends who knew him were aware of his friendly nature. He was looking forward to going to college to embark on a new chapter of his life.
More top news
A large tent has been put up around the area while investigations continue.
The kind gesture touched the hearts of many who shared and retweeted words of support for the officer on Twitter.
Two workers were forced into a back office as the robbers tried to force their way into a safe, police say.