Look carefully at this crime scene and find out if its a Suicide or a Homicide?

Homicide or Suicide Crime Scene riddle

Homicide.

1. The broken clock indicates there must be struggle in the room

2. The presence of another person can be inferred by two glasses.

3. There are a book and a pen on the bed which indicates that the dead person was reading and a suicide note was written from another pen which seems to be planted.

4. Crutches seem to be too far from the dead man.