The explosive device sent to CNN’s headquarters appears to have been sent by the same individual or individuals who sent the packages to the Clintons and Obama, NYPD’s chief of counterterrorism said. The same person or group is also expected to be behind an explosive device sent to prominent Democratic donor George Soros earlier this week.

It’s unclear what motivated the individual or individuals to send the apparent explosive devices, though all of the intended victims are frequently subjects of President Donald Trump’s ire. The president has repeatedly attacked CNN as “fake news,” called for Hillary Clinton to be thrown in prison, and claimed to be the victim of a conspiratorial takedown by Soros and Democrats.

All of the packages under investigation had Rep. Debbie Wasserman Schultz (D-Fla.), the former chairwoman of the Democratic National Committee, listed as the return sender, though her name was misspelled as “Shultz,” the FBI confirmed.

A suspicious package found at Wasserman Schultz’s office in Sunrise, Florida, on Wednesday had been addressed to former Attorney General Eric Holder but was rerouted to her address based on the return label.

Wasserman Schultz issued a statement denouncing the attempted violence and said she was “deeply disturbed by the way [her] name was used.”