It is time for you to lawyer up.
So, from this point forward, say nothing, do nothing, INVOKE.
Tomorrow hire a lawyer, if you have no funds, simply wait.
If the police appear again, cooperate with them, and say, "Sorry, I invoke. I want a lawyer, and choose to remain silent, as is my right."
Then, no matter what is threatened or promised, remain silent.
Its okay to give your name, date of birth, address, etc., but don't discuss any aspect of the case.
If arrested, cooperate, but remain silent, and request a lawyer when you see the judge, eventually.
Get your affairs in order, as you may be held in jail for days or weeks, until you can arrange bail.
Nothing you can do now, but prepare for the tornado that will soon appear!!!