(defn append
  [new suspects]
  (conj new suspects))

(append (mapify (parse (slurp filename))) {:name "Dr acula" :glitter-index 0})

({:name "Dr acula", :glitter-index 0} {:name "Edward Cullen", :glitter-index 10} {:name "Bella Swan", :glitter-index 0} {:name "Charlie Swan", :glitter-index 0} {:name "Jacob Black", :glitter-index 3} {:name "Carlisle Cullen", :glitter-index 6})



(defn append
  [new suspects]
  (conj suspects new))

(append (mapify (parse (slurp filename))) {:name "Dr acula" :glitter-index 0})
ClassCastException clojure.lang.PersistentArrayMap cannot be cast to java.util.Map$Entry  clojure.lang.APersistentMap.cons (APersistentMap.java:42)