Complex sentence: As the 1970s continued Chris Rosenberg, along with the rest of the DeMeo crew, would contribute to many more killings in the next couple of years which included suspected informants and other mobsters Roy DeMeo and his followers were contracted to kill.
Split into simpler sentences: As the 1970s continued Chris Rosenberg, along with the rest of the DeMeo crew, would contribute to many more killings. The victims included suspected informants and other mobsters Roy DeMeo and his followers were contracted to kill.