CLEVELAND  After the third police station in a row refused to take a missing-person report about her niece two years ago, Sandy Drain took matters into her own hands.

She organized search parties to comb abandoned houses. She got neighborhood children to help post fliers on light poles. She recruited a national advocacy group for missing persons to host a rally. She even hired a psychic to look for clues in her niece’s apartment.

“It was pretty obvious the police weren’t going to help us,” said Ms. Drain, 65, who added that the police began seriously investigating the case of her niece, Gloria Walker, only after Ms. Drain’s initial efforts prompted the news media to begin asking questions.

“If you’re from this neighborhood, you come to expect that,” Ms. Drain said.

Her desperation and anger have grown here on Cleveland’s gritty east side since the police last week arrested Anthony Sowell, a convicted sex offender who has been charged with multiple counts of murder after 11 decomposing bodies were discovered in his house and backyard.