This is the 14666th most frequent German word.
mutmassliche
"Mutmaßliche" means "alleged" or "presumed" in English.
Here, 'mutmaßliche' is used as an adjective modifying the noun 'Täter' (perpetrator), indicating something assumed or suspected to be true based on evidence but not confirmed.
Der mutmaßliche Täter wurde gestern festgenommen.
The alleged perpetrator was arrested yesterday.
In this instance, 'mutmaßliche' modifies 'Tatwaffe' (weapon used in the crime), suggesting it is presumed to be the related weapon based on investigative assumptions.
Die Polizei untersuchte die mutmaßliche Tatwaffe.
The police examined the alleged weapon used in the crime.
Here, 'mutmaßlichen' describes 'Vorfall' (incident), denoting an event that is suspected or presumed to have occurred based on witness statements.