As Catuara's protégé, Dauber was suspected in over 20 unsolved homicides, between 1969 and 1980, in the decade-long struggle for Steven Ostrowski's lucrative South Side chop shop operation.
After his release in 1976, Dauber joined rival mobster Albert "Caesar" Tocco as a top enforcer who had slowly gained control of the Southside.
On July 2, 1980, the Daubers received a continuation from Judge Angelo Pistilli on charges accusing the couple of concealing cocaine and weapons in their suburban residence.
While leaving the Will County courthouse, Dauber answered to reporters regarding his criminal activities, "I just live quietly in this country, that's all."
While driving home from the courthouse, unidentified gunmen (in the Family Secrets case it was said that the hitmen were Frank Calabrese Sr., Ronnie Jarrett, Butch Petrocelli and Gerald Scarpelli) driving a Ford van drove up alongside them and began firing at the car.