Burkman said detectives had some surveillance camera footage which they hoped may be useful and were also pulling the camera footage from the grocery store to see if he had been followed.'I thought I was going to die.

When I saw the mask, then next thing I thought was there would be an automatic weapon and he was going to blow me away.'Burkman said he had not threats prior to this attack but suggested it may be linked to his work in support of Paul Manafort and Rick Gates.

A Republican lobbyist currently supporting a Trump aide charged over the Russia probe told Wednesday how he was pepper sprayed and punched by a masked man in his driveway.

Jack Burkman told Daily he was doused in the face with spray and struck on the head by an unknown assailant who pulled up in a black SUV outside his home at pm on Tuesday, in what he said was a 'professional hit'. The lobbyist suffered burns to his face following the attack.

The investigation is ongoing.' Speaking to Daily Wednesday, Burkman shared details of the attack.

He said he had left home on foot at 6.45pm to buy dinner at his local Safeway and was returning home around 45 minutes later when it happened.

The victim was treated on scene by medics for minor injuries.

The suspect is described as a white male wearing a mask and black jacket.Mueller's probe has taken down others from the president's campaign and administration, notably extracting guilty pleas and cooperation from former foreign policy adviser George Papadopoulos and former national security adviser Michael Flynn.Mueller's team has also interviewed a raft of current and former White House officials and is set to quiz Steve Bannon, the former chief strategist to the president.Burkman also has a team of investigators looking into Rich's mysterious death and has said his group has personally examined Rich's computers and found no evidence that there were any contacts between the DNC staffer and Wikileaks.Burkman runs the Profiling Project, which he describes as 'a 24-hour-a-day, seven-day-a-week investigation' into the Seth Rich case.Burkman hosted a fundraiser last month for Rick Gates, 45, a long-time business associate and protégé of Paul Manafort, the man who ran Trump's presidential campaign for several months in 2016 and is also charged by Mueller.