The Montgomery County Coroner announced Wednesday that Nicholas Carr died of multiple injuries as a result of suicide.
Officials say cannabis was found in his system.
The teenager's body of was found in Whitemarsh Memorial Park on November 7th.
Authorities say Carr climbed a ladder and then fell 175 feet from the top of a mausoleum tower in the cemetery.
A Facebook memorial page has been set up where scores of online posts remember the teen as good-hearted, a joke teller. He was also described as a daredevil. One comment saying: "Literally, the most fearless kid I knew."