Union, Mo. ? Police released a sketch Monday of a woman they believe stole a baby after slashing the mother’s throat, hoping to generate new clues in the four-day old case.

Stephenie Ochsenbine, 21, helped police artists with the composite drawing of the woman she said attacked her at her home on Friday and snatched her baby, Abigale Lynn Woods, now 10 days old.

Franklin County Sheriff Gary Toelke hoped the drawing, as well as a picture of a black scarf that was recovered near the home on Saturday, would generate new clues. Authorities also hoped the child was alive and well.

“From history, if somebody wants a child, I would assume that child’s being taken care of,” FBI agent Roland Corvington said.

The sketch shows a woman with dark hair and a baseball cap. Franklin County Sheriff Gary Toelke said she is believed to be between 5 feet 4 and 5 feet 8 and about 200 pounds.

Toelke said Ochsenbine “wasn’t completely happy” with the sketch, “but it’s the best we could come up with.” He said more than 300 leads have come in so far.

Ochsenbine told police she did not know the woman who came to her door and entered the house asking to use the telephone. Ochsenbine’s 1-year-old son, Connor, also was in the house but was unharmed.

Corvington said authorities were still awaiting lab results on fingerprints from a knife found near the home, about 45 miles southwest of St. Louis.