What types of data would be most useful in creating a criminal profile?

Criminal profiling specifically for arson and serial homicide offenders has been a technique used by the FBI since the late 1970s.

To produce a criminal profile for an unknown suspect, profilers use various types of collected data to make assumptions and conclusions about the case at hand.

In a 750-1,000-word essay, identify a real-life example of a criminal that was apprehended using an FBI criminal profile that was matched to him or her and address the following:

What types of data would be most useful in creating a criminal profile?

What are some of the disadvantages to using such profiles?