The magistrate said Monday he was satisfied with prosecutors’ evidence linking the three suspects to the days-long siege of Westgate Mall in which 67 people were killed.
A fourth suspect was freed for lack of evidence.
The Somali Islamic extremist group al-Shabab claimed responsibility for the attack that shocked Kenyans and horrified the world.
![Suspects charged with helping al Qaeda-linked militants launch an attack on the Westgate mall Liban Abdullah Omar and Mohamed Ahmed arrive at the dock during the appearance for their case at the Milimani Law Courts in Nairobi]({"default":"//img-s-msn-com.akamaized.net/tenant/amp/entityid/BBSdzIQ.img?h=416&w=799&m=6&q=60&u=t&o=f&l=f&x=2546&y=593","size3column":"//img-s-msn-com.akamaized.net/tenant/amp/entityid/BBSdzIQ.img?h=416&w=624&m=6&q=60&u=t&o=f&l=f&x=2546&y=593","size2column":"//img-s-msn-com.akamaized.net/tenant/amp/entityid/BBSdzIQ.img?h=416&w=624&m=6&q=60&u=t&o=f&l=f&x=2546&y=593"} "Suspects charged with helping al Qaeda-linked militants launch an attack on the Westgate mall Liban ... - REUTERS/Thomas Mukoya")
![(From L) Mohamed Ahmed Abdi, Adan Mohamed Ibrahim and Hussein Hassan Mustafah, appear at the Milimani High Court in Nairobi, on January 14, 2019 in connection with the 2013 Westgate mall terror attack in Nairobi which caused more than 60 people dead. - The men are not accused of carrying out the attack, but of lending support to the gunmen. (Photo by SIMON MAINA / AFP) (Photo credit should read SIMON MAINA/AFP/Getty Images)]({"default":"//img-s-msn-com.akamaized.net/tenant/amp/entityid/BBSdTXI.img?h=416&w=799&m=6&q=60&u=t&o=f&l=f&x=2245&y=461","size3column":"//img-s-msn-com.akamaized.net/tenant/amp/entityid/BBSdTXI.img?h=416&w=624&m=6&q=60&u=t&o=f&l=f&x=2245&y=461","size2column":"//img-s-msn-com.akamaized.net/tenant/amp/entityid/BBSdTXI.img?h=416&w=624&m=6&q=60&u=t&o=f&l=f&x=2245&y=461"} "(From L) Mohamed Ahmed Abdi, Adan Mohamed Ibrahim and Hussein Hassan Mustafah, appear at the Miliman... - REUTERS/Thomas Mukoya")
![Suspects charged with helping al Qaeda-linked militants launch an attack on the Westgate mall, Liban Abdullah Omar and Mohamed Ahmed have their handcuffs loosened as they stand in the dock while co-accused Hussein Hassan and Adan Mohamed look on during the appearance for their case at the Milimani Law Courts in Nairobi, Kenya December 20, 2018.]({"default":"//img-s-msn-com.akamaized.net/tenant/amp/entityid/BBSdEIM.img?h=416&w=799&m=6&q=60&u=t&o=f&l=f","size3column":"//img-s-msn-com.akamaized.net/tenant/amp/entityid/BBSdEIM.img?h=416&w=624&m=6&q=60&u=t&o=f&l=f","size2column":"//img-s-msn-com.akamaized.net/tenant/amp/entityid/BBSdEIM.img?h=416&w=624&m=6&q=60&u=t&o=f&l=f"} "Suspects charged with helping al Qaeda-linked militants launch an attack on the Westgate mall, Liban... - REUTERS/Thomas Mukoya")
![Left to right, Hussein Hassan Mustafah, Adan Dheq, Liban Abdullah Omar, and Mohamed Ahmed Abdi, who are charged with aiding the gunmen involved in the Westgate Mall attack in Sept. 2013, appear during their ongoing trial at Milimani court in Nairobi, Kenya Thursday, Dec. 20, 2018. (AP Photo/Khalil Senosi)]({"default":"//img-s-msn-com.akamaized.net/tenant/amp/entityid/BBSdEIP.img?h=416&w=799&m=6&q=60&u=t&o=f&l=f&x=2260&y=843","size3column":"//img-s-msn-com.akamaized.net/tenant/amp/entityid/BBSdEIP.img?h=416&w=624&m=6&q=60&u=t&o=f&l=f&x=2260&y=843","size2column":"//img-s-msn-com.akamaized.net/tenant/amp/entityid/BBSdEIP.img?h=416&w=624&m=6&q=60&u=t&o=f&l=f&x=2260&y=843"} "Left to right, Hussein Hassan Mustafah, Adan Dheq, Liban Abdullah Omar, and Mohamed Ahmed Abdi, who ... - REUTERS/Thomas Mukoya")
Photos by Reuters/Thomas Mukoya
Suspects charged with helping al Qaeda-linked militants launch an attack on the Westgate mall have their handcuffs loosened as they stand in the dock at the Milimani Law Courts in Nairobi
Since 2011 the rebel group, which is linked to al-Qaida, has vowed retribution on Kenya for sending troops to Somalia.