WikiLeaks founder Julian Assange in London. Carl Court/Getty Images

The family of slain Democratic National Committee staffer Seth Rich is calling on conspiracy theorists to stop speculating about factually baseless connections between his death and a WikiLeaks hack.

Since Rich was shot while walking home in Washington, DC, on July 10, online conspiracy theorists have speculated that his death may have been connected to the hack and subsequent leak of internal DNC emails.

The group WikiLeaks on Tuesday offered $20,000 for information leading to a conviction in Rich's case. WikiLeaks founder Julian Assange took the offer a step further in an interview, suggesting that Rich was potentially a WikiLeaks source.

In a statement to Business Insider on Wednesday, Brad Bauman, a spokesperson for the Rich family, thanked investigators and implored high-profile figures to stop attempting to politicize Rich's death by perpetuating unfounded theories about the shooting.

"The family welcomes any and all information that could lead to the identification of the individuals responsible, and certainly welcomes contributions that could lead to new avenues of investigation," Bauman said.

He added:

"That said, some are attempting to politicize this horrible tragedy, and in their attempts to do so, are actually causing more harm than good and impeding on the ability for law enforcement to properly do their job. For the sake of finding Seth's killer, and for the sake of giving the family the space they need at this terrible time, they are asking for the public to refrain from pushing unproven and harmful theories about Seth's murder."

DC police have also attempted to carefully tamp unproven online speculation about Rich's DNC connection while seeking information from the public.

Following Rich's death, Metropolitan Police Department officials suggested that the shooting was likely the result of an attempted robbery.

MPD spokesperson Alice Kim told Business Insider on Tuesday that there was no evidence connecting Rich's death to his work at the DNC but that the department welcomed information.

"At this time, there is no indication that Seth Rich's death is connected to his employment at the DNC. However, we welcome information that could potentially lead to the identification of the individual(s) responsible for his death and are pleased when any outside contributors help us generate new leads," Kim said.

Rich's death has garnered significant attention from some online forums and right-leaning outlets, as he was killed weeks before WikiLeaks' release of hacked internal emails in which top DNC staffers criticized and considered taking political action against Vermont Sen. Bernie Sanders.

The FBI launched an official investigation into the hack, which experts linked to hackers with Russian ties.