Baltimore Police Commissioner Darryl De Sousa said Wednesday he is close to signing an agreement with a six-member panel — including two former Baltimore police detectives — to investigate the unsolved death last year of Det. Sean Suiter.

De Sousa said he has a memorandum of understanding with the former detectives "sitting on my desk right now" to investigate the fatal shooting of Suiter — one of the few unsolved killings of a police officer in the Baltimore department's history, reports the Baltimore Sun .

"What I can say is it's going to be two former Baltimore City police detectives," De Sousa told reporters at City Hall on Wednesday. He said the detectives were "well respected" in the field. "When I share the names you'll understand what I'm saying."

The police chief said the two former detectives will be joined by "a few other outside police leaders."