RALEIGH -- Funeral services will be held this weekend for a pregnant woman who was found dead last week behind a Raleigh convenience store.

Police say Jenna Nielsen was delivering newspapers for USA Today when she was killed at a gas station on Lake Wheeler Road early last Thursday. The News and Observer reports that an autopsy indicated she was stabbed.

There are also reports that a bloody knife may have been found in the area, but police are not confirming that.

Police are also searching for a man, possibly in his teens or early 20s, in connection with the case. He is described as standing 5-foot-3 and weighing about 120 pounds with long, black hair. (Watch the video for a look at the composite sketch)

Anyone with information is urged to call Raleigh police at (919) 227-6220. There is a reward for information that leads to an arrest.