Slobbery Jim (real name unknown) was a leader of the 1850s New York City gang, the Daybreak Boys, which was formed in the late 1840s in Five Points slum with membership drawn from teenaged Irish immigrants.
The Daybreak Boys are believed to have caused the loss of at least $100,000 in property and committed at least twenty murders between 1850 and 1852.
However, he had to flee New York City to avoid prosecution for the murder of a fellow Daybreak Boy known as "Patsy the Barber".
The two had robbed and murdered a newly arrived German immigrant but then the pair got into an altercation at a criminal dive known as the "Hole-in-the-Wall" over the distribution of the twelve cents taken from the victim.
After a lengthy fight, Jim cut Patsy's throat before stomping him to death with his hobnail boots.