Of course, they must be arrested.  
And to convene the CEC, this note should be sent to Sverdlov.²  
Lenin  

¹ V. D. Bonch-Bruyevich, in his note, informed V. I. Lenin about the anarchist actions of a group of sailors—participants in the murder of the ministers of the Provisional bourgeois government, A. I. Shingaryov and F. F. Kokoshkin, in the Mariinsky Hospital on the night of 6 to 7 January 1918—requested V. I. Lenin’s opinion on the arrest of the sailors, and proposed convening a meeting of the CEC in connection with these events (see V. I. Lenin, *Collected Works*, vol. 50, pp. 25–2K, 411).  
² Ya. M. Sverdlov—Chairman of the VTsIK.