MM double target bug

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hi,

anyone can explain what happened in this situation?

Night 1:

targeting:
1 (mass murderer) targeting 15 (citizen)
13 (bodyguard) targeting 1 (MM) (redcording this step in his lw) (checked replay, he wasnt controlled by witch, neither BD swapped anything)
4 (lookout) targeting 1 (MM)

result:
13 (bg) murderered by MM
15 (citi) murdered by MM

4 (lookout) getting the message that 13 (bg) visited 1 (MM)
4 WASNT attacked by MM

funny shit, detective observed lookout and instantly trial-lynched him.

can anyone tell me why bodyguard got killed by MM? ^^

replay: MM.SC2Replay