Between the death of Nero and the arrival of Galba at Rome, Nymphidius wasted no time: he orchestrated the "resignation" of Tigellinus and stood as sole commander of the praetorian guard.
As Nero was no longer alive and Galba had not yet reached Rome, Nymphidius acted promptly: he arranged for Tigellinus' "resignation" and assumed control as the sole commander of the praetorian guard.