He's not the first "Interplanetary Detective"...
...that honor goes to Planet Comics' Fero (who went "inter"planetary in his second appearance)!
But Brant Craig was the longest-lasting, with seven appearances!
Yeah, let's not worry about the innocent spacemen who were just killed during this raid, or their families.
They're just collateral damage...
This never-reprinted premiere from Youthful's Captain Science #2 (1951) was probably illustrated by Bill Molno.
The writer is unknown.
Brant Craig continued through the remaining five issues of Captain Science.
When the book was re-titled Fantastic, Brant (and Captain Science) made their final bows in the first issue.