The Washington Post’s interactive map on homicides in the District reviews 2,294 cases between 2000 and 2011. Readers can use the map to find killings that happened in their own neighborhoods, follow homicide trends over time, learn how the victims died, and what happened to their cases.

Here are some key findings:

Homicides in D.C. are down 55 percent since 2000.

The number of homicides in the District fell last year to 108, a 49-year low. Despite the decline, homicide continues to be a tough crime to solve and prosecute in the city.

Thirty percent of homicides in D.C. led to convictions for murder or manslaughter.

This interactive map has details about 2,294 homicides that occurred between 2000 and 2011 in the District of Columbia. Find the killings in your neighborhood, follow the trends over time, and learn how the victims died and what happened to their cases.

Of the 2,294 homicides that occurred in the District of Columbia between 2000 and 2011, 694 led to convictions for murder or manslaughter. At least 189 cases ended with administrative closures.

Motives: Drug killings down 84 percent.

The most common motives for homicide in D.C. are arguments, drugs and retaliation. About 2 percent are classified as gang-related. Homicides involving drugs have decreased about 84 percent since 2000. Drug-related homicides accounted for eight of the city’s killings last year, compared with 49 in 2000.

Most dangerous age: 24 percent of those killed were in their early 20s.

In recent years, the District of Columbia has experienced a historic drop in the number of homicides and a concurrent rise in the percentage of cases closed by police.

More than half of the District’s homicide victims between 2000 and 2011 were between the ages of 15 and 29. About 93 percent of those victims were male, and 94 percent were African American. Females accounted for 11 percent of the city’s homicide victims, including 23 who were under the age of 14.