Family, Friends & Fellow Officers Remember...

Simply a hero who gave his all!

Just saw this and remembered seeing Mark over 40 years back!

Colonel Gregory K
A friend

July 12, 2024

Never forgotten!!!!

Lieutenant (Retired) P Sedillo
VSP

October 23, 2023

Sr. Trooper Cosslett,
On today, the 20th anniversary of your death I would just like to say thank you for your service and sacrifice-not just as a Law Enforcement Officer but for our Country as well when you served with the USMC. And to your Family and loved ones, I wish to extend my deepest sympathy.

Semper Fi Devil Dog!
A fellow LEO; former Marine

Anonymous
United States Border Patrol

October 23, 2022

I was a civilian employee/MAP unit with VSP. Mark Cosslett treated the MAP unit with respect and always treated them like they were part of the team. I worked numerous scenes with him and considered him a friend.

MAP unit 5044-Dave Bowrin
VSP

September 14, 2020

Rest in peace Senior Trooper Cosslett.

Rabbi Lewis S. Davis

June 8, 2019

Mark, you visited me in the hospital when I gave birth to my first son. I have a picture of you holding him. It was a special surprise as on Oct 24, 2000. Although, you were briefly in my life, I’ll never forget your kindness. I need you now more than ever to watch over me and my sons.

Mom to 3 sons
Ex wife of Va state police agent

June 4, 2019

Miss, and love ya brother!

Lieutenant (Retired) P Sedillo
VSP

October 23, 2018

Well little brother, your dad has come to stay with you. I’m so thankful for all the time we all had together!! Kick up your heels and watch these games you both loved to see together. Love you and Rest In Peace to you and everyone else. Until we see each other again!
Deb

Debbie Echols
Sister

October 5, 2018

Rest in peace.

Lt. Jim Russo

October 24, 2017

In my 28 year career as an Officer with FCPD, I did not experience a worst day, than the day we lost you brother Mark. The night we loaded your body into that ambulance, troopers and Officers cried like young children. The raw pain was too much to bear, and we had to embrace other for support as we said a prayer to the lord. We prayed for you and your dear family. Your service and sacrifice will never be forgotten. You will remain in my mind until my last day in this earth.

MPO Abraham Gelabert
Fairfax County Police

February 21, 2016

Bro,

13 years today...it doesn"t seem it's been so long though. I miss you as much today as I did then. God Bless and keep you Mark...I know he is, and I wonder everyday of how events could have been impacted if you were still on this earth.

I hope all is well with your family, as I know they know you are in a better place. I miss you so much...

"A Brother"
"WWD&MD"

October 24, 2015

Mark, I just found what happened. I've read all the nice comments made by your friends and family. I remember you the same way as many others smiling and happy. I also remember your family reaching out and helping to help us when my father died.

I have spent the past week thinking about you, I'm so sorry you left so soon.

Colleen Fracker
Childhood Friend

April 2, 2015

Sorry I missed posting on your birthday. I never forget you telling mom wanted a purple cake for your birthday! You got it then, and every year after. Love and miss you. I know you're up there laughing at all the Virginia drivers in this snow... Lol

Deb, sister of one taken too soon.

February 27, 2015

Bro,

All the things going on today and the event early this morning... I haven't felt your presence for some time, but today I did, even before I remembered what day it was.

Miss you Mark...

"A Brother"
"WWD&MD"

February 24, 2015

Bro,

I wish I could say this day brings back memories of the hurt and pain from that day, as if this anniversary was the only time that those feelings occurred. Unfortunately... I still feel them everyday. I did realize something this morning though, that I'm making progress.

Last night we took the girls to an event that they just loved, and I was so happy watching through their eyes, how much they enjoyed it. This morning I realized that we were seated in the same section that you and I had sat for some other different events. If I had thought about it last night, if might have taken away from my joy of watching them.

While I'm glad that didn't happen, I feel sad that I didn't remember then. I know I shouldn't feel this way and you would say to get over it, but it's just the things that go through my head, especially this time of year. While I do concentrate on the positives, my mind does wander off for no reason about things that I know I can't change and aren't healthy to fixate on.

I'll never forget you bro, and if it were possible to flip a switch and forget all the bad memories, but at the sacrifice of also including the good ones...I'd never touch it. The good memories still outweigh all the bad...love you bro.

"A Brother"
"WWD&MD"

October 23, 2014

Everyday on my way to work i pass the sign on the highway that bears your name; i always say a prayer and thank you for your service. You will always be remembered.

FBI Special Agent (retired)
FBI

September 11, 2014

Bro,

Another "Police Week"...is here and gone. I really miss the trips into DC with you, it's just not the same anymore. I thought things would be so much better dealing with your death and the events that surrounded it, once I let go of the anger.

It did feel good to let things go...for a bit, but there's just an empty spot in my heart, that no matter how great my family life is, or how many wonderful blessings I have to thank God for...just continues to resist being filled.

I hope that my "Hero" is allowed to talk with you and know you as you were on this earth. It does makes me smile to think of you two together...miss you brother.

"A Brother"
"WWD&MD"

May 31, 2014

Happy 52nd Birthday little brother! Mom is up there with you for the first time making your purple birthday cake! Miss you!!

Deb
-big sister!

February 24, 2014

Bro,

Another year, and the time has not helped with your passing. Even with being so consumed by recent events, it makes it even harder because I know you would have been beside me through it all had you been here.

I miss you brother, and not just when there are rough spots. I feel like I've lost the little bit of ground I've gained in the last eleven years...

"A Brother"
WWD&MD

October 23, 2013

Miss you little brother!! 11 years... We miss you, your humor, your love, your caring, your laugh, your everything!!

Debbie Echols
Sis

October 23, 2013

I had an interesting day today. If anyone told me before today, what I was going to do today, I would have told them, they would be wrong. I saw an opportunity today to get some things off my chest, and I took it. It took a load off my chest, that I had grown weary of carrying.

The thing about getting rid of one thing is something always replaces it. I was feeling good about what happened today and my heart felt lightened. I rolled home and started thinking about things and realized a lot of the hate I had focused on certain people had helped me deal with your death and without the hate, I had nothing left to use as a buffer for the pain anymore.

Mark, I love you brother, and not a day goes by I don't miss your friendship and comradery. I'm taking a new and very different path right now, so we will see where that leads. A small part of me feels like I'm letting you down in some way...but I feel this is what God would want me to do...myb.

"A Brother"
"WWMD"

August 15, 2013

Still think back to the sense of shock and loss on your passing. You will always be remembered as a wonderful man in so many ways. Peace be with you and your beloved wife and children.

Jen Lovelace
Civilian

April 6, 2013

As I sit and watch another funeral for a fallen trooper I can't help but miss you even more. It seems so fresh In my mind, as if it was the call about you over 10 years ago. We miss you lol brother and thank you all of the officers who make it possible for us to sit safely in our homes. I'm sure you know how proud we are to call you our brother. My heart goes out to Master Trooper Walkers family! They are in my thoughts and prayers during this difficult time!

Sis

March 12, 2013

Ten years today and it still feels like yesterday. So much has happened since you've been gone that I wish you were here for, but selfishness aside, I wish you could be here for your family.

I turned out to be a pretty good husband and father, you would be proud, as I grew up in many areas. Not sure how some think of me as a friend, as your death has put up walls that are hard to chip away at and bring down. Maybe some are better left up...I don't have the answers.

I think sometimes I'm over the anger and drama of the past and want to move on in some areas, and one thing happens or one comment is made which brings it all out again.

I know many miss you in their own way, some genuine, some just want to be part of something they don't understand.

There's so much I don't understand, but I will try. I miss you everyday and hope and pray I was as good a friend to you while you were on this earth as you were always to me.

Thank you God for allowing me to know Mark and to call him a friend, and please watch over his family.

"A Brother"
"WWMD"

October 23, 2012

10 years today lil brother. I remember it like it was yesterday. Miss your laugh, your smile, your craziness, and the love you had for your family!! I look at your senior picture and have to laugh that so much of your life you lived to the max!! Miss you and Thank God we had you for the time we did. Memories will always make me smile!!

Deb
Big sis

October 23, 2012