Jonathan Long has a history of bi-polar, schizophrenia, and ADHD and hasn't been seen since Sunday afternoon. Family members are worried about him because he has seemed depressed lately and they don't know where he is.
If you've seen the 21 year old man, Altoona Police would like you to give them a call at 814-949-2489 or Blair County Department of Emergency Services via 911 or 814-940-5952 (Non-Emergency).

