Final answer:
Franco Harris, the pro football hall of famer known for the 'immaculate reception,' died this week at age 72.
Step-by-step explanation:
The pro football hall of famer known for making the iconic "immaculate reception" and who died this week at age 72 is Franco Harris. The "immaculate reception" refers to a famous play in an NFL playoff game in 1972 where Harris caught a deflected pass and ran it into the end zone for a touchdown. Harris played for the Pittsburgh Steelers from 1972 to 1983 and was inducted into the Pro Football Hall of Fame in 1990.