You are a distance 10m from a sound source. How far must you go from the source to have the sound level decrease by 25 dB

the cellphone, they would then know if the killer would have contacted them or always hated them. or if it was a breakup. but if that is not the case, then it would be the clothing. to put in a bullet, it would have to be put in by hands. hands have finger prints which, would have giving you the answer of who done it.

explanation:

the device is called “ rocket engine”