Yesterday was a nightmare

Well last night I was coming home I went to subway to buy some food after that I went home it was like 9:15 pm when I got out of the car I heard my dog Lolo & Max barking I open the door from my patio I called my dog Sammy but he wasn't responding me I check if he escape that would be weird when I saw him layed on the floor I though he was sleeping and he was too tired I poke him just to see if he would wake up he dint respond me after that I try to wake him up til I found out he was dead I start screaming and I call my neighbor Elsa since she is a vet she tried to bring him back to life but nothing could happen many neighbor start crying I lost my self I don't know what the hell I did since I was crying to much right now my step father buried my dog my mom dint told me where and I know she wont say where. My dog Sammy was and still my favorite dog and my best buddy where I could play fetch with him and give him everyday a nice long walk and sometime play in the pool with him that thing that I don't get it is that my dog Sammy was fine like usual and he always been healthy my mom think he died by heart attack.