In five hours on Monday, police believe the same man attacked six different 7-Eleven stores. The date was 7/11, so the company has its anniversary events. The masked man wearing a black and green hoodie first ambushed a store in Ontario around midnight. 45 minutes later, he robbed an Upland store, and an hour later, the gunman showed up at a Riverside 7-Eleven. Another shooting occurred around 3:20 a.m. in Santa Ana. There, officers found a man dead in the 7-Eleven parking lot. The victim did not work at the store, and surveillance video shows the suspect dropping items — believed to be the victim’s belongings — while leaving, police said. In this image from video from a 7-Eleven store in Upland, Calif., released by the Upland Police Department is a person police are trying to identify in connection with two people killed and three injured in shootings at four 7- Eleven locations in Southern California, Monday, July 11, 2022. (Upland Police Department via AP) In this photo released by the Ontario Police Department is a person wanted by police in connection with a robbery at a 7-Eleven store in Ontario, Calif., on Monday, July 11, 2022. (Ontario Police Department via AP) APIn this video image released by the Brea Police Department is a person police are trying to identify in connection with two people who were killed and three wounded in shootings at four 7-Eleven locations in Southern California, Monday, July 11, 2022. At least three of the four gunmen holisms are believed to be linked to the same lone gunman. (Brea Police Department via AP) By the end of the night, the suspect had robbed stores in Brea, Ontario, Upland, Riverside, Santa Ana and La Habra, killing night clerk Matthew Hirsch, 40, of Brea, and Matthew Rule, 24, of Santa Ana. Three more people were shot and injured but survived. Two of the survivors were shot at a La Habra store and one in Riverside. After the deadly robberies, 7-Eleven Inc. urged Los Angeles-area stores to close Monday and Tuesday night for safety. Riverside Police Officer Ryan Railsback said it does not appear to be a coincidence that the 7-Eleven was targeted on Sept. 11, although law enforcement does not yet know the suspect’s motive. 7-Eleven is offering $100,000 for information leading to the arrest and conviction of the suspect. “Tipsters may remain anonymous by contacting Orange County Crime Stoppers at 855-TIP-OCCS,” the company said in a statement. The Associated Press contributed to this report.