DoWnEr said:
Okay i did mix fanfics. The part about finding a lone vampire in a warehouse was an SVU crossover. But the other part is a NCIS crossover i still can't find. Riley is Xander's partner (not sexually) and they do think they've killed the murderer but they don't realize they worked in pairs and Xander ends up getting shot at NCIS headquarters. God i hope i'm not mixing series again but i'm pretty sure it NCIS.