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ROCKVILLE, Md. (WUSA9) -- Security has been upgraded at Jewish institutions across the Washington region following Sunday's shooting at a Jewish Community Center and a Jewish retirement home in Kansas City.

At the Greater Washington Jewish Community Center in Rockville, Chief Executive officer Michael Feinstein says they began making preparations as word spread of the shooting. The Jewish Holiday of Passover started at sundown.

The JCC houses a pre-school and is frequented on an average day by thousands of people.

Some members who were there on Monday expressed concern about the incident in Kansas City but indicated they feel safe at the facility. Two Montgomery County police vehicles were outside and county police there and elsewhere in the region have indicated patrols have been stepped up outside Jewish Community center and Jewish Temples.

But police say there has been no specific threat against any local facility.

The shooting is likely to be a topic of conversation as Jews across the country sit down for the traditional passenger sedar which commemorates Jewish freedom from slavery in Egypt more than three thousand years ago.

William Lewis Corporon, was taking his 14-year-old grandson, Reat Griffin Underwood, to try out for an American Idol-like competition called 'KC Superstar' on Sunday afternoon when they were both shot and killed. Another person was shot dead at a nearby Jewish Retirement home moments later.

Police have arrested 73-year-old Frazier Glenn Cross, a former Ku Klux Klan leader for the shooting.

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