BOSTON >> The Boston Police Department has started a new multimedia campaign in attempt to develop new leads in some of the hundreds of unsolved homicides in the city dating to 1970.

The campaign, dubbed Search for Justice, will feature videos posted on the department's website, Facebook and Twitter pages, which include interviews with detectives on the case as well as members of the victims' families.

One case per month will be highlighted.

Commissioner William Evans acknowledged that one reason for the effort is the perception that police don't do enough to investigate unsolved homicides. He says "This shows that we never forget."

The department says there are 952 unsolved homicides in the city since 1970.

The project's first video features 18-year-old Eric Smith-Johnson, killed in September 2010 in the Dorchester neighborhood.