Frank Rosa was another low key powerful guy. He was born on February 21, 1930, lived on Jefferson Heights Road, Penn Hills, Pennsylvania. Rosa was convicted of extortion in 1975 but never jailed because of poor health, according to this report. His principal activities were prostitution and the numbers racket.

Rosa and his father-in-law, Joseph Sica, both LaRocca crime family members, and Vincent Manella, a civil engineer, were Indicted by a federal grand jury in Pittsburgh for a $10,000 extortion attempt involving a Monroeville municipal park project. In 1974, the three defendants allegedly told Joseph Vacarello, owner of Penn Landscape and Cement, that he would not receive a $128,600 contract for Monroeville's Overlook Park Project unless he paid them $10,000.
According to Vacarello, he met Rosa and Sica in Manella's office one morning. That afternoon, Manella put a $10,000 price tag on the contract award. Manella told Vacarello it was only out of their friendship that he was bringing Vacarello together with Sica and Rosa.
Vacarello testified that after he learned of the reputations of Sica and Rosa he became extremely concerned for his life. He said he wrote out an account of the shakedown attempt later that night because he did not know what might happen to him.

In 1975, Rosa, Sica and Manella were found guilty of violating the Hobbs Act and were sentenced to five years in prison. Rosa and Sica received $10,000 fines and Manella got a $2,500 fine. Their sentences stipulated that the men would be eligible for parole after six months. Rosa was unable to serve his term because of poor health. Sica served 11 months.