Fast food robber's blood may help lead to arrest

Police are hoping DNA evidence will lead them to a thief who has been targeted in fast food chains across the south portion of metro Atlanta.

Surveillance video obtained by FOX 5 News shows the man holding up a Chick-fil-A and Taco Bell. Coweta County investigators said the man left behind a drop of blood on the floor of one of the restaurants.

Investigators said they will run the DNA against all criminal databases to see if there is a match.

Police said the trademark of the robber is reaching across the counter, snatching the cash from the register, before running away.

Authorities said the man is responsible for three holdups of which they are aware.