I am so sorry to hear about Yoshi. But i will pray for a SAFE RETURN!!!!!
It breaks my heart to hear this

Hang in there, & dont blame yourself!!!
We can be the BEST mommy's Ever, but sometimes that isnt enough to keep our pups from getting away. I have had this happen to me as well, Luckily I found my baby, & wish the same for you!!! Your in my Prayers!!!
Keep us posted!