[It's a fair question, especially without the same frame of reference that Akechi has.

He hums, index finger brushing against his chin.]

There may be clues within this garage. Let me just...

[He takes his phone again, this time shining the flashlight around. It can at least give them a better idea of the garage's interior, and...

Interesting. Amidst the shards of broken glass and scattered tools and machinery, the symbols on the floor catch his eye.]

Perhaps these symbols were part of an occult ritual. Often times in fiction, such symbols correlate to the dark arts and, in particular, summoning.

[It's just a hunch, of course, but it would at least explain some things.]