UPDATE (March 20, 2011): According to TMZ, Starr’s memorial is actually taking place today at Seattle’s Space Needle (not the Seattle Center, as recently reported).

UPDATE (March 14, 2011) BLABBERMOUTH.NET reports the public memorial for Mike Starr “will be held on Sunday, March 20 between 4:00 p.m. and 11:30 p.m. at ‘The Fountain’ (Seattle Center) in Seattle, Washington.”

UPDATE (March 12, 2011): As the folks over at Spinner remind us, toxicology reports could take up to two months. However, this voicemail, courtesy of TMZ, shows Starr was looking for drugs before his death.

UPDATE (March 11, 2011) Memorial Matters now features an online memorial for Mike Starr. Thanks to Jennifer Smith (below) for the heads up.

UPDATE (March 9, 2011) According to Spin, Mike Starr’s cause of death has yet to be disclosed, but members of Alice In Chains have released a statement viewable over at Roadrunner Records’ Blabbermouth blog.

Former Alice In Chains bassist Mike Starr was found dead this afternoon. The 44-year-old rocker was in Salt Lake City, Utah at the time of his passing.

Starr, who was arrested last month for felony possession of Xanax and Opana pain pills, appeared on the ninth season of Celebrity Rehab and then later on Sober House, which documented his transition from rehab back into everyday life.

So far, authorities haven’t released any reports about the official cause of death, though it seems the music world – and those who new Starr – suspect drug overdose. In addition to Nikki Sixx’s tweet above, Dr. Drew tweeted he was devastated to hear about “Mike Starr succumbing to his illness.”

If the suspicions are true, Starr isn’t the first Alice In Chains member to lose his life to substance abuse. Lead singer Layne Staley overdosed on heroin and cocaine and passed away in 2002.

I will update this post as more news becomes available.

In the meantime, R.I.P. Mike Starr.

Image Source: Twitter