The FBI has successfully broken into the phone of the man who shot at former President Donald Trump at Saturday’s rally in Butler, Pennsylvania.

“FBI technical specialists successfully gained access to Thomas Matthew Crooks’ phone, and they continue to analyze his electronic devices,” the agency said in a statement on Monday.

The search of the subject’s residence and vehicle are complete.

The FBI has conducted nearly 100 interviews of law enforcement personnel, event attendees, and other witnesses. That work continues.

The FBI has received hundreds of digital media tips which include photos and videos taken at the scene and we continue to review incoming tips. We encourage anyone with information that may assist with the ongoing investigation to continue to submit it online at tips.fbi.gov or call 1-800-CALL-FBI.

While the investigative work continues, FBI victim services personnel have offered assistance to the victims of Saturday’s incident.

The agency did not disclose how it gained access to the phone. In a conference call with reporters on Sunday, FBI officials told reporters that agents in Pennsylvania had obtained Crooks’ phone but hadn’t been able to break into it. The phone was sent to the FBI’s lab in Quantico, Virginia.

The investigation is ongoing.