Up in Smoke

A couple weeks ago I found 45 cigarette butts plus matches in my bathroom window sill with numerous burn marks on the wood. Apparently when I said no smoking after I found my bathroom counter burned we decieded to go for the window sill. Then when that was found we went higher up on the window. Then I found Rick's window open and cigarette burns on that window sill. Then I found burn holes in Rick's matress. Then this morning the bathroom sink wouldn't drain, guess what I found cigarette butts shoved down the drain. When Rick was questioned it isn't him, he quit smoking. And the matress well that was a long time ago, he tried to light the matress on fire. Gee I feel so much better. I want to know why I don't smoke in my house but my 15 feels he has the right to and destroy my house at the same time. And people wonder why I get frustrated. HMM let me think. I told him I'm tired of it, I found him one night smoking on the basement stairs, he threw a lit cigarette in the basement and denied it. Helloo it's burning on the wooden steps. He wants to know why I would think he's trying to burn down my house? Let me think.... I don't know intall smoke alarms in his room in the bathroom? But would it go off from a cigarette? I've grounded and taken things away, to no avail. He came home with a lighter that sounds and looks like a blow torch. He found why can't he keep it. I'm duh? Do you need a lighter? And for what? Oh that's right to break my rules. I've had so many people say just give him a corner in the house to smoke. 1st of all he is under 18, can we say illegal? 2nd of all I don't somke in my house for a reason, so why should he? Can we tell I am frustrated. Any ideas?