The short video, released by police on Wednesday, shows a man running down the street holding what appears to be an umbrella. The suspect then stops, tries to open a locked door and continues on his way. Const. Tania Visintin asked anyone who recognizes the man or who witnessed the June 19 attack to contact police. “Given the time of day and location of this incident, we believe there were witnesses who have yet to come forward,” Visindin said in a news release. “We also believe that people will recognize the suspect and can help us identify him.” The victims were loading luggage into a taxi outside the Empress Hotel on East Hastings Street when someone approached and slashed them with a machete. One of the victims, Casey Gianulis, told CTV News that the assailant looked at her “almost like I insulted him or said something, but no words were exchanged.” Then she felt a sting at the base of her neck. “I heard a woman’s voice scream, ‘That’s not an umbrella, that’s a knife,’ and that’s when all the blood spilled out,” Janulis said in an interview last month. Authorities said none of their victims’ injuries were life-threatening. The suspect is believed to be 40 to 50 years old and approximately 5’10” tall. He was wearing a black, long-sleeved shirt, gray pants and black sneakers. Anyone with information can contact the Vancouver Police Department’s Major Crimes Unit at 604-717-2541,