Jeri Hope Douglas, 75

Jeri Hope Douglas, a 75-year-old woman, was found dead Monday, Dec. 17, in the 200 block of South Madison Avenue in Pasadena, according to police.

About 3:40 p.m., officers from the Pasadena Police Department responded to a condo in the area to perform a welfare check, according to a news release from the department.

The person who called police was concerned she couldn’t reach her mother, police said.

Officers discovered Douglas inside the condo unresponsive.

Mary Jean O’Connor, a 41-year-old white woman, was arrested on suspicion of murder on Dec. 26, police said.

O’Connor was charged Jan. 15 with one count of murder. Prosecutors said that Douglas had been strangled to death. Police said the killing does not appear to be random.

Police have placed a security hold on the case, preventing the coroner’s office from releasing information such as Douglas’ race and ethnicity and the cause of death. The Times will update this entry once the hold is lifted.

Anyone with information is asked to call detectives at (626) 744-7052. Those who wish to remain anonymous can call Crime Stoppers at (800) 222-8477.

Contact the Homicide Report. Follow @nicolesantacruz and @latimeshomicide on Twitter.