This stinks to high heaven. Read it carefully and critically. Via the AP: 
The FBI won’t take over an investigation into the homicide of a Baltimore city detective who was shot in the head the day before he was to testify before a federal grand jury about a group of indicted officers, the city’s top police official said Wednesday.
FBI officials have seen no evidence to suggest Detective Sean Suiter’s death was “directly connected” to the federal corruption investigation, therefore FBI officials believed it would be “prudent” for the police to continue leading the inquiry, Baltimore Police Commissioner Kevin Davis said, quoting a letter he said he received from FBI Assistant Director Stephen Richardson.
“That means that they believe that at this moment there’s no conspiracy to murder Sean Suiter by someone else involved in that ongoing case,” Davis told reporters.
Rumors about Suiter’s Nov. 15 shooting went into overdrive last month when Davis confirmed that the acting U.S. attorney and FBI informed him the detective was gunned down the day before he was to testify in an ongoing federal investigation of a disbanded gun-recovery unit. Eight Baltimore officers have been indicted on charges they defrauded their department, falsified evidence and shook down citizens. The same week Suiter was shot, a Philadelphia officer became the ninth officer indicted in the investigation of Baltimore’s Gun Trace Task Force.
Suiter was attacked while investigating a 2016 triple homicide with his partner in a high-crime neighborhood. Davis said Suiter approached a “suspicious” man in a vacant lot between row houses, leading to a violent confrontation in which he was shot with his own gun. His partner can be seen on private surveillance video taking cover across the street, according to Davis.
Too coincidental, in my opinion.
And he was going to testify before a federal grand jury the next day, and the Federal Bureau of Investigation refuses to investigate?
This stinks.