The two died in a car crash after a Mexican-led operation to destroy a clandestine drug lab.
John Ashby, 32, initially denies the attack but changes his plea one day after the trial begins.
The claim was brought over concerns the technology can be used in an arbitrary or discriminatory way.
A 17-year-old boy pleads guilty to arson after an attack on Kenton United Synagogue.
Midtjylland midfielder Alamara Djabi is in a stable condition having been seriously injured in a stabbing in Denmark, his club says.