Third one down - 749 - 15th Street:
http://lycos.colorado.oodle.com/housing/sale/-/bathrooms_7+?loc=zip_80309%3A10
Note that when JonBenet was killed, the home's address was 755 - 15th Street. It was changed by the city ... for obvious reasons.
"Completely finished basement" -- Does that not make you want to cringe??