It seems like the rumors linking Alpha Jalloh and his friends to Seth Rich's murder have been circulating on the web since July 2016. Looks like the source for making the SVR report public would be Sorcha Faal at WhatDoesIt Mean.com.

This SVR report, though, says that DNC official Seth Rich was “lured/enticed” to his murder by this Clinton “hit team” who portrayed themselves as FBI agents wanting to secretly interview him—and that the expelled Russian diplomats had given the US State Department “electronic access” to so that they could be found.

Curiously, this report continues, US authorities, and while being able to track this Clinton “hit team” since 7 July, only confronted these assassins yesterday—and who before being captured, engaged in a gun battle with US federal police forces firing their fully automatic weapons before being trapped and surrendering just blocks from the US Capitol and White House.

http://www.whatdoesitmean.com/index2071.htm

On Wednesday, police identified the suspects as Keyante Edwards, 19, of Southwest D.C.; Alpha Jalloh, 18, of Southwest D.C., and Keith Jones, 20, of Southeast D.C.

Edwards, who is accused of firing the gun, and Jalloh, who court documents say drove the vehicle, face a number of charges and were ordered held without bond. Jones, who is only charged with evading arrest, was released on his own recognizance.

http://www.nbcwashington.com/news/local/US-Capitol-Visitors-Center-on-Lockdown-386523371.html

Some believe that Sorcha Faal is David Booth, the owner of the WhatDoesIt Mean.com website.

There is a high chance that "Sorcha Faal" is actually David Booth, the owner/operator of the website, or someone collaborating with him.

http://rationalwiki.org/wiki/Sorcha_Faal