Complex sentence: She is revealed to be Rebecca Ryker, the daughter of Harlan Ryker; after being maimed in an explosion that killed her mother and brother, Rebecca was rebuilt using the Deathlok technology that her father developed.
Split into simpler sentences: She is revealed to be Rebecca Ryker, the daughter of Harlan Ryker. After being maimed in an explosion that killed her mother and brother, Rebecca was rebuilt using the Deathlok technology that her father developed.