In 1971, he was convicted of first-degree murder and conspiracy to commit murder for the deaths of seven people, including the film actress Sharon Tate. The prosecution conceded that Manson never literally ordered the murders, but they contended that his ideology constituted an overt act of conspiracy.
Which means - Manson talked specifically about killing people, talked about how to do it, planned out items with the people who did the killing & did nothing to stop it. Conspiracy to commit murder.
Trump in regard to COVID19: immediately shut down travel to China - immediately worked with the highest medical authorities - immediately got the word out of the virus - immediately gave power to the states to react how the states felt best - had his medical authorities come up with Social Distancing & wearing a medical mask, & offered aid to Democrat overran cities where mass gatherings of people were causing property damage & helping to incubate the Pandemic to keep it spreading.
That isn't nothing & all was done to help keep the virus at bay.
So - according to my logic - Trump hasn't killed many Americans -but by my logic...Manson did commit conspiracy to commit murder.
Nice try though.