A 19-year-old Somali-Norwegian man accused of carrying out a stabbing rampage in London’s Russell Square is to appear in court in the British capital.

Zakaria Bulhan of London has a hearing Saturday at Westminster Magistrates’ Court in the murder of 64-year-old American Darlene Horton. Bulhan also faces five counts of attempted murder.

Horton was visiting London with her husband, Florida State University psychology professor Richard Wagner, who had been teaching summer classes in London. The couple had been due to fly home the next day.

Although London has been on edge because of attacks on the European mainland, police say they’ve found no evidence of radicalization or links to terrorism.

Bulhan, who moved from Norway to Britain as a child, has been described as a quiet loner.