The Mugger by Ed McBain

heavily.
    He stared at her for a long moment. “Listen, are you sure you should be walking around like this?”
    “Yes, it’s very good for me. The doctor said I should walk a lot.”
    “Well, if you get tired—”
    “I’ll tell you. Bert, will you help?”
    He looked at her face. There was no panic in her eyes, and the grief, too, had vanished. There was only a steadfastness of purpose shining there, a calm resolve.
    “What could I possibly do?” he asked.
    “You’re a cop,” she said.
    “Molly, the best cops in the city are working on this. Homicide North doesn’t let people get away with murder. I understand one of the detectives from our precinct has been working with a policewoman for the past two days. They’ve—”
    “None of these people knew my sister, Bert.”
    “I know, but—”
    “You knew her, Bert.”
    “I only talked to her for a little while. I hardly—”
    “Bert, these men who deal with death…My sister is only another corpse to them.”
    “That’s not true, Molly. They see a lot of it, but that doesn’t stop them from doing their best on each case. Molly, I’m just a patrolman. I can’t fool around with this, even if I wanted to.”
    “Why not?”
    “I’d be stepping on toes. I’ve got my beat. This is my beat; this is my job. My job isn’t investigating a murder case. I can get into a lot of trouble for that, Molly.”
    “My sister got into a load of trouble, too,” Molly said.
    “Ah, Molly,” Kling sighed, “don’t ask me, please.”
    “I’m asking you.”
    “I can’t do anything. I’m sorry.”
    “Why did you come to see her?” Molly asked.
    “Because Peter asked me to. As a favor. For old time’s sake.”
    “I’m asking you for a favor too, Bert. Not for old time’s sake. Only because my sister was killed, and my sister was just a young kid, and she deserved to live a little longer, Bert, just a little longer.”
    They walked in silence for a time.
    “Bert?” Molly said.
    “Yes.”
    “Will you please help?”
    “I—”
    “Your Homicide detectives think it was the mugger. Maybe it was, I don’t know. But my sister was pregnant, and the mugger didn’t do that. And my sister was killed at the foot of the Hamilton Bridge, and I want to know why she was there. The killer’s cliff is a long way from where we live, Bert. Why was she there? Why? Why?”
    “I don’t know.”
    “My sister had friends; I know she had. Maybe her friends know. Doesn’t a young girl have to confide in someone? A younggirl with a baby inside her, a secret inside her? Doesn’t she tell someone?”
    “Are you interested in finding the killer,” Kling asked, “or the father of the child?”
    Molly considered this gravely. “They may be one and the same,” she said at last.
    “I…I don’t think that’s likely, Molly.”
    “But it’s a possibility, isn’t it? And your Homicide detectives are doing nothing about that possibility. I’ve met them, Bert. They’ve asked me questions, and their eyes are cold, and their mouths are stiff. My sister is only a body with a tag on its toe. My sister isn’t flesh and blood to them. She isn’t now, and she never was.”
    “Molly—”
    “I’m not blaming them. Their jobs…I know that death becomes a commodity to them, the way meat is a commodity to a butcher. But this girl is my sister!”
    “Do you…do you know who her friends were?”
    “I only know that she went to one club a lot. A cellar club, one of these teenage…” Molly stopped. Her eyes met Kling’s hopefully. “Will you help?”
    “I’ll try,” Kling said, sighing. “Strictly on my own. After hours. I can’t do anything officially, you understand that.”
    “Yes, I understand.”
    “What’s the name of this club?”
    “Club Tempo.”
    “Where is it?”
    “Just off Peterson, a block from the avenue. I don’t know the address. All the clubs are clustered there in the side street, in the private houses.” She paused. “I belonged to one