"Gypsy" Arthur Robert Harper (b. 1882) was a bank robber, serial rapist, mobster and serial killer.

Victims[]

Two of the victims of Arthur Robert Harper.
- 1899
- Unspecified Date, Binghamton, New York
- Harris Family (all survived)
- Mother (Raped repeatedly in front of family)
- Father (tied up, severely beaten)
- Daughter (Also raped in front of the rest of the family)
- Son (Beaten)
- Harris Family (all survived)
- Unspecified Date, Binghamton, New York
- Lakewood Family
- Mother (raped and intended to kill; ultimately survived)
- Son (strangled to death with tie)
- Lakewood Family
- Unspecified Date, Binghamton, New York
- 1900
- Unspecified Date, St. Louis, Illinois
- Unnamed Grocer (severely beaten during robbery)
- Unspecified Date, St. Louis, Illinois
- 1918
- Unspecified Dates, grand total of seventeen banks robbed, with the help of his gang.
- 1921
- Unspecified Date, Jackson Prison
- Roman Kubiak (jumped in mess hall and fatally stabbed)
- December 11th, Marquette Branch Prison (no survivors)
- Warden T.B. Catlin (stabbed numerous times, died six weeks later in hospital)
- Deputy Warden Menhennett (slashed open stomach and pierced heart with knife)
- Arthur (slit throat and decapitated)
- Charles Anderson (Stabbed in the groin and through the ear into brain)
- Unspecified Date, Jackson Prison