Who killed the chemist? Can you find in 30 seconds?

Rİddle: Who killed the chemist? Can you find in 30 seconds?

A well-known chemist name from London was murdered while his visit to New York
He left a note “76-20-44 79-16-22-7”

A local detective Mark Robinson was called to solve the case,
Chemist five assistant is under suspicion of killing the chemist named :
Austin, Terry, Cole, Hazard, Oscaru, and Drogba.

After reading the note, Mark Robinson instantly asked the police to arrest the murderers.

Who are the murderers?

Answer:  The correct answer is OSCARU AND AUSTIN.

Awesome puzzle! Just wish the periodic table was a little bigger