The plural form for the pronoun 'it' is 'they' for the subject and 'them' for the object of a sentence or clause; fro example: There is a book on my desk, it is a math book.
Actress Rue McClanahan, known best for her role on The Golden Girls died five years ago on June 3, 2010 at age 76 after suffering a second stroke. Actress and civil rights activist Ruby Dee, known best for her roles in A Raisin in the Sun and Do the Right Thing. died one year ago on June 11, 2014 at the age of 91.
His calculations put the trajectory over the left side of the trailing car, which was full of Secret Service agents, including one who at some point picked up an AR-15 rifle. Donahue concluded the agent, George Hickey, accidentally shot the president when the car suddenly lurched. The theory got little notice, despite a 1977 write-up in the Baltimore Sun and a 1992 book, Mortal Error: The Shot That Killed JFK, by Bonar Menninger. Donahue died in 1999.