Mrs Ajao said she was "deeply shocked, saddened and numbed" by her son's actions and said she had "shed many tears" for his victims.
The wife of Khalid Masood says she is "saddened and shocked" by his attack and "totally" condemns his actions.
"After the terrorist attack, I want to express my thanks to the police, House of Commons staff, emergency services and my own staff for their actions".
Dr Wilcox said to the families who were there "I wish you all well" and asked the families to pass on her condolences to those who were unable to attend.
"I would like to request privacy for our family, especially the children, at this hard time".
Last Wednesday, Khalid Masood, 52, drove at speeds of up to 76mph as he ploughed into pedestrians on Westminster Bridge, killing four people and injuring over 50, all in 82 seconds.
The ISIS-inspired killer than smashed the vehicle into a fence at the Palace of Westminster before stabbing PC Keith Palmer to death in an horrific knife attack.
Egypt: 21 killed in explosion at Coptic Christian church
Copts face persecution and discrimination that has spiked since the toppling of Hosni Mubarak's regime in 2011. The group has waged a campaign against Egypt's Christian minority, the largest in the Middle East.
The inquest for the victims is expected to be adjourned at Westminster's Coroner's Court as police continue to investigate the attack.
The Islamic State said Masood was a "soldier" of the group.
The Metropolitan police said on Monday that Masood had a clear interest in (Takfiri) terrorism and his methods echoed the rhetoric of Daesh.
Coroner Dr Fiona Wilcox leading today's proceedings set a review date of 25th April and a provisional hearing date of Friday 19th May to take place at the Royal Courts of Justice.
He offered tributes to the bravery of Pc Palmer, who died after trying to stop Masood from entering Parliament during last Wednesday's attack.
Also, the theory that Masood was radicalized during a spell in prison is doubted by detectives. "Most importantly, so do the victims and families", he said.
Meanwhile, pressure mounts on WhatsApp to allow access for intelligence services and police to Masood's communications over reports he was using the encrypted-messaging service just before the attack.
Bradley misses game with injured knee, hopes to avoid DL
Bradley's play followed this nifty catch by shortstop Marco Hernandez , so it was a good defensive inning for the Red Sox overall. Boston activated right-hander Matt Barnes from the bereavement list and optioned righty Noe Ramirez to Triple-A Pawtucket.
The inquest also heard details of the other victims of the attack, including USA tourist Kurt Cochran, who suffered multiple injuries after being hit by the vehicle.
Aysha Frade, Pc Keith Palmer, Kurt Cochran and Leslie Rhodes were killed in the attack.
Masood's inquest will open and adjourn at the same court on Thursday at 2pm.
Cochran's wife, Melissa, suffered a broken leg and rib and a cut head, but is steadily improving.
Two men arrested in connection with the investigation remain in custody.
The national chairman of the Ahmadiyya Muslim Association, Rafiq Ahmed Hayat, told CNN it was important for his organization to show solidarity with the people of London at a very hard time.
Witness Says Driver Who Crashed into Church Bus Was Texting
But they say the speed limit along the stretch of road where the wreck occurred is 65 miles per hour (104 kph). Moreno said the bus was traveling south when the northbound pickup truck veered into its lane and hit the bus.