Investigators have searched the homes of the Georgia father and son accused of killing unarmed black jogger Ahmaud Arbery, according to a report.

Agents from the Georgia Bureau of Investigation spent more than two hours late Tuesday scouring the Brunswick residences of Gregory McMichael, 64, and Travis McMichael, 34, who have been charged with felony murder and aggravated assault in Arbery’s Feb. 23 shooting death, WSB-TV reports.

The investigators did not appear to leave the Santilla Drive homes with any evidence, but they did inspect vehicles parked outside, as well as a boat dock, the station reports.

The McMichaels, who are white, are accused of confronting Arbery, 25, after chasing him for 4 minutes when he was spotted at a nearby construction site. Travis McMichael then shot Arbery at close range as they struggled over the shotgun, video shows.

The McMichaels were not arrested in Arbery’s slaying until May 7, two days after graphic video of the fatal encounter became public. The GBI announced the charges.

Gregory McMichael, a retired investigator for the local district attorney, told Glynn County police he thought Arbery was a burglar and claimed he attacked his son prior to being killed.

GBI agents, meanwhile, did not appear during their visit to the McMichaels’ homes to search the residence of William “Roddie” Bryan, the man who recorded the video of Arbery being fatally shot.

Bryan’s attorney has said his client has voluntarily taken a lie detector test that proves he was not involved in the slaying. The results of the polygraph have been shared with the GBI, attorney Kevin Gough said late Monday.