Solomon Grundy (Earth-2: Post-Crisis)

"What the heck is that? A friend."

- Jakeem Williams and Rick Tyler

Solomon Grundy was a member of the Injustice Society of America until his liberation where he eventually abandoned his allies to their fate once Hourman defeated him.

Joining the Injustice Society
At some point, Solomon Grundy joined the Injustice Society of America.

Fighting the Justice Society
On December 24, 2010, Solomon Grundy was present at the final battle between the Justice and Injustice Societies. Icicle commanded him to kill Starman and Stripesy but he only managed to damage their getaway car which allowed them to escape.

Hunting Rex Tyler
In 2011, Grundy tracked down Rex Tyler and his wife, Wendi Tyler, and killed them by slamming the front of their car which caused them to crash into a tree.

Imprisonment
At some point afterwards, Grundy was incarcerated in a cell in the ISA's headquarters beneath the The American Dream.

In 2020, Jordan walked past his cell and said hello to Grundy before walking away.

Powers

 * Superhuman Speed: Solomon Grundy can move incredibly fast and is able to keep up with a speeding car.
 * Superhuman Strength: Solomon Grundy is incredibly strong and was able to knock Rex Tyler's car off the road with such force that he and his wife were killed by the impact.
 * Superhuman Leaping: Grundy is able to leap significantly higher than average humans.
 * Regeneration: According to The Shade, Grundy has the ability to regenerate from his injuries if he was buried at the correct time and place.