US president Barack Obama and his wife Michelle paid tribute to Jenny and her colleagues who are credited with saving the lives of some of those injured in the massacre.
PHD student James Holmes has been charged in relation to the shootings which left 12 people dead.
However, her family has now been plunged into a sense of grief of their own. Jenny was out swimming in a lake close to her home when she is believed to have drowned.
Her husband Greg Pinson and five-year-old son Jack are struggling to come to terms with the loss of a “wonderful mother”.