| Sport | Boxing |
|---|---|
| Position | Professional Boxer |
| Hall of Fame Status | TRUE |
| Date of Birth | — |
| Place of Birth | — |
| Date of Death | — |
| Place of Death | — |
| Age at Death | — |
| Cause of Death | Natural Causes |
| College / University | — |
| Teams | — |
Biography
Leonard allegedly refused attempts by organized crime figures to turn over some of his contracts. He was later attacked at his home. He later testified before a federal grand jury about those allegations, and eight people eventually were sent to prison.