The Original Jaculi
The original Jaculi was a young man of Bedouin ethnicity. He had the power of super-speed and used explosive javelins as his weapon. He was killed by Captain Boomerang when the Suicide Squad attacked them.
The Second Jaculi
Not much is known of the woman who has taken up the mantle of Jaculi. She had the same super-speed and affinity to explosive javelins as her predecessor did. She was killed by Deadshot when she was causing a terrorist attack.