 In 1868, Heinrichs organized the Hell's Kitchen Gang whose members committed street muggings and petty theft in the areas between Eighth Avenue and Thirty-Fourth Street.He later joined with Ike Marsh and the Tenth Avenue Gang launching a campaign against the Hudson River Railroad which included extortion, breaking and entering, destruction of railroad property and armed robbery.Both Heinrichs and Marsh co-led the gang until Henrich began facing legal problems during the early 1870s.