Surveillance video adds new twist to missing baby Lisa Irwin case

Authorities in Missouri continue to follow leads in the disappearance of 11-month old baby Lisa Irwin.

There is newly released surveillance video from a gas station near Lisa Irwin's home showing an unidentified figure walking along the road around 2:15 a.m. Oct. 4 -- which is the same night baby Lisa disappeared.

The station manager says it's unusual to see anyone walking at that time of night in the area.

The video has been turned over to police but they would not comment on it.

Lisa was reported missing at 4 a.m. Oct. 4, after her father came home from work.

The child's mother told NBC last week that she was drunk the night Lisa disappeared and that she had last seen the baby about four hours earlier than initially reported.