The most dangerous mobster on “General Hospital” back in the day was Frank Smith.
After arriving in town, Julian also learned he had two previously-unknown children.
Meanwhile,Julian began a relationship with Alexis Davis(Nancy Lee Grahn).

As tensions heightened between the various criminal organizations, he tried to leave the business at Alexis' urging.
He then had a one-night stand with Olivia Falconeri (Lisa LoCicero), which resulted in a pregnancy.
Julian figured out what she was doing and threatened her life.

She planted a bomb in his car, inadvertently killing Morgan Corinthos, and tried to murder Alexis Davis.
Julian attempted to rescue Alexis, but Olivia shot him.
Later, Julian found himself under the thumb of drug lord Cyrus Renault (Jeff Kober).

Cyrus blackmailed him into planting a bomb in a local restaurant, which killed several people.
The walls started to close in on Julian, so he fled town.