As A.J. (Sean Kanan) continues to struggle for his life while recovering from being shot, his assailant could potentially be revealed on General Hospital.

Julian Behind Bars For A.J.'s Shooting

Though Julian Jerome (Michael DeVry) is currently behind bars as a suspect in the shooting, his sister, Ava (Maura West) is the real culprit and is currently walking free. However, in a preview clip for the Monday, March 10 episode, her secret could be revealed.

"Do you know who shot A.J.?" Michael (Chad Duell) asked his father, Sonny (Maurice Bernard).

Ava Shoots A.J.

"I do," Sonny replied.

Sonny could reveal that Ava shot A.J., but may reiterate that she did so in self-defense after fearing A.J. would attack her. After committing her crime, Ava saw Sonny arrive at her door, forcing her to come up with a story to explain her actions.

The potential news of why Ava may have shot A.J. is likely to rock Michael.

Meanwhile, Luke's (Anthony Geary) continued strange behavior is sincerely worrying Tracy (Jane Elliot), who will go to Kevin (Jon Lindstrom) with her concerns.

"This is serious, Luke is not himself," she said in the clip.

Luke has been acting strangely since he was found after Heather (Robin Mattson) made him disappear. He had stumbled across a captive Carly (Laura Wright), and was aware that Heather was responsible for it, but was unable to rescue her because of Heather getting him out of the picture.

Now his behavior will continue to scare, and could potentially hit a new, threatening level when he makes a move on Kiki (Kristen Alderson).

"You're much too young for only one man," he said to her in the clip as he rested his hand on her leg.

General Hospital airs Monday-Friday at 2 p.m. on ABC.