Let's find this cowardly punk Chicago. A 21-year-old woman was fatally shot in front of her twin sister and young nieces on the Northwest Side on Halloween. Maria Coronel, 21, was a passenger in a car being driven by her sister in the 2200 block of North Long Avenue about 9:20 p.m. Wednesday when a man got in the backseat, pulled out a gun and demanded the sister keep driving, according to police and relatives. The sister's daughters, ages 1 and 2, were in the car at the time. The man stole $40 from Coronel and her sister before fatally shooting Coronel in her head. She was pronounced dead on the scene. The man ran away.Police have not released a description of the coward. No one is in custody.