In that July event, police say the four people were involved in a break, enter and assault with a weapon.
RELATED: Three arrested in connection with two break, enter and assaults in P.E.I.
The latest man to be arrested is now in jail and all four will make initial court appearances today in Summerside.
The arrest was made through the cooperation of the RCMP major crime unit and the East Prince Joint Forces Operations team.
The RCMP continues to investigate this matter and asks that if anyone has information regarding this incident, please contact your local RCMP Detachment.
The investigation team is asking for tips from anyone that knows about these instances.
To give a tip directly to a police officer, call the Queens District RCMP at 902-368-9300, or East Prince RCMP at 902-436-9300, Summerside Police Service at 902-432-1201, or Charlottetown Police Services at 902-629-4172.
To give a tip, but remain anonymous and possibly qualify for a cash reward, contact Crime Stoppers, either on the Internet and follow the various ways to make a tip, including through Facebook, or with a toll-free, anonymous phone call to 1-800-222-8477 (TIPS).
