Following the shooting during an Independence Day parade in the Chicago suburb of Highland Park that killed at least six people, a local Chabad emissary said he had witnessed the suspected shooter entering a synagogue during the Jewish festival of Passover in April.

Rabbi Yosef Schanowitz recognized the photo of 22-year-old Robert E. Crimo III released by police following the shooting, and realized he had encountered the suspect a few months earlier, according to the Israel National News website.

“During the last Passover holiday, that person entered the Chabad synagogue. We have an armed security guard sitting in front… I approached him and sternly asked him to leave as I noticed he was not a member of our community,” Schanowitz was quoted as saying.

He said he was in touch with the families of the victims and was “trying to be as helpful as we can at this difficult time.”... Read More: Times of Israel