When it comes to discussing incidents involving electric shocks, there are various synonyms that can be used in lieu of the phrase "killed by electric shock." Some of the possible alternative phrases might include "fatally electrocuted," "shocked to death," "electrical injury resulting in death," or simply "electrocution." Each of these phrases carries a different connotation and tone, which may be more or less appropriate depending on the specific circumstances of the incident in question. Ultimately, the choice of synonym will depend on factors such as the context of the conversation, the level of formality required, and the speaker's personal preference.