When Dani, a cop, queries in internet chat whether anyone has come across homicides in which the body's heart was ripped out, he is answered by "Joseph_1995". In the original movie, The Prophecy (1995), and its immediate two sequels, Joseph is the name of a forensic pathologist involved in investigating the murder of an angel whose heart was ripped out.
"Gloria", the woman arranging flowers in Father Constantine's wake, is the wife of Joel Soisson, Claudia Templeton.