Kasim Lewis bound and gagged Catherine Burke, 55, in her £700,000 home in Muswell Hill, north London, before stabbing her to death on November 16, 2017
Killer already serving life for one murder admits stabbing civil servant to death
Kasim Lewis bound and gagged Catherine Burke, 55, in her £700,000 home in Muswell Hill, north London, before stabbing her to death on November 16, 2017