Mr.Combustible came to Gotham to make a name for himself, but when other criminal started getting kill he, along with several others joined the Penguin for protection.
Mr. Combustible was created by Detective Comics writer Tony Daniel and was first introduced into the DCU after the relaunch of 2011.
Major Story Arcs
Detective Comics: Faces of Death- Penguin
The Penguin has called several of Gotham's lower end criminals to join his group and come under his protective wing. On the opening night of The Iceberg Lounge Penguin holds a meeting, during which Batman shows up trying to find, Jill Hampton, who he thinks is the murderer of several crime figures in Gotham. While Batman tries to find Jill he calls in a bomb threat to clear out the innocent bystanders. The Penguin leave the group and tries to save himself, this is when the group figure they need to take care of there own valuables in the Penguins safe. When they get there Batman is fighting Jill Hampton. The group steps in trying to get revenge on Jill for stealing there money. During the ensuing fight, Combustible detects explosives and the group tries to flee before the Penguin blows them up as part of his double cross.
Mr. Combustible has his glass head cracked by Ferdie, the living puppet, of Shauna Belzer. Ferdie uses drills and shoves them into Combustible's head and continues to drill until reaching his skull.