My Bioshock Glitched

Ok so here it goes

Im at the part where your taking pictures for sander cohen

ive killed and shot 3/4

other than the ice tunnel guy

i killed everyone in the tunnel

and then had nothing to take a picture of,

J/w if i need to Start all over or if there is a way to get past this

you should be able to still take pics of their corpse

the body maybe glowing gold

The problem is,

his body is no longer in the tunnel.....