Douglass Watts, a 73-year-old white man, was shot and killed on the morning of September 30, 2018, while walking his dogs in the Rogers Park neighborhood of Chicago. The shooting occurred around 10 a.m.; Watts was struck in the head at point-blank range. Investigators determined his killing was linked by ballistics to the murder of 24-year-old Eliyahu Moscowitz, who was shot in the head less than 36 hours later while walking on the Lakefront Trail.

Surveillance footage showed a masked suspect in black clothing with a distinctive gait, dubbed the Duck Walk Killer. Police described the suspect as dark-complexioned but said the exact race could not be determined because the person concealed their identity. Neither victim was robbed, and authorities have said theft did not appear to be the motive. Community members raised a reward that grew from $23,000 to $150,000 for information.

No suspect has been identified or arrested. Are there readers who knew Douglass Watts or who have information that could help investigators?